How Long Does IP Protection Last? Every Term, Explained
How long does IP protection last? Copyright is life + 70 years, patents 20 years from filing, trademarks potentially forever — every term and renewal explained.
“How long does a patent last?” sounds like it should have a one-number answer — until you learn the clock starts at filing, not grant, and that unpaid fees can kill the patent a decade early. The same is true across all of IP: every right has a headline term, and every headline term has fine print that decides what you actually get. This guide lays out how long IP protection lasts for each of the five types, the renewal traps, and why the differences between the clocks drive some of the biggest strategy decisions in business.
The full duration table
| IP type | Standard term | The fine print |
|---|---|---|
| Copyright | Author’s life + 70 years | Works for hire: 95 yrs from publication or 120 from creation, whichever ends first |
| Utility patent | 20 years from filing | Maintenance fees due at 3.5 / 7.5 / 11.5 years or it dies early |
| Design patent | 15 years from grant | No maintenance fees |
| Trademark | Potentially forever | Requires continued use + §8 filing (years 5–6) + §8/§9 renewals every 10 years |
| Trade secret | Indefinite | Ends permanently the moment secrecy is lost |
| Right of publicity | Life + state post-mortem term | Varies wildly by state; California adds 70 years after death |
Now the detail — because for every type, the interesting part is how the term really behaves.
How long does copyright last?
For works created on or after January 1, 1978, the rule of 17 U.S.C. § 302 is simple in outline: the author’s life plus 70 years, running to the end of the calendar year. A novelist who publishes at 30 and dies at 80 has produced a copyright lasting roughly 120 years — by far the longest term in IP.
Three variations matter:
- Works made for hire (created by employees within their job, or specially commissioned under a qualifying written agreement) and anonymous/pseudonymous works get 95 years from publication or 120 years from creation, whichever expires first — there’s no human “life” to measure from. Most corporate-owned content, from studio films to company websites, runs on this clock.
- Joint works measure from the death of the last surviving author.
- Pre-1978 works follow older, messier rules. The short version: works published in the U.S. with proper formalities got an initial term plus renewal totaling up to 95 years from publication. That’s why the U.S. public domain grows by one publication-year every January 1 — on January 1, 2026, works first published in 1930 entered the public domain, joining Steamboat Willie-era Mickey (freed in 2024) and its successors.
That annual January 1 release, and what you can legally do with newly freed works, is covered in public domain and Creative Commons. For how these long clocks play out in litigation, browse the copyright case archive.
How long does a patent last?
Utility patents: 20 years from the earliest effective filing date (35 U.S.C. § 154) — and that word filing is the most misunderstood detail in patent law. Examination routinely takes two to three years (sometimes far longer), and every one of those years comes out of your 20, not on top of it. File in 2026, get granted in 2029, and you have roughly 17 years of enforceable life left.
Two mechanisms give some time back:
- Patent term adjustment (PTA) adds days to compensate for USPTO delays during examination — automatic and calculated at grant.
- Patent term extension (PTE) under 35 U.S.C. § 156 restores up to five years lost to FDA regulatory review — the reason drug patents, whose products can spend a decade in clinical trials, get special treatment.
Then comes the trap: maintenance fees. To keep a utility patent alive, the owner must pay escalating fees at 3.5, 7.5, and 11.5 years after grant — under the USPTO’s 2025 fee schedule, from roughly $2,000 at the first stage to over $8,000 at the third for large entities (small and micro entities pay 60% and 80% less). Miss a payment (plus the six-month grace period) and the patent expires early. This isn’t rare — a large share of U.S. patents, by many estimates around half, lapse before their full term because the owner decides the invention no longer justifies the fee. The 20-year number is a ceiling, not a guarantee.
Design patents: 15 years from grant (for applications filed since May 13, 2015), with no maintenance fees — a genuinely fixed term. Plant patents run 20 years from filing, like utility patents but without maintenance fees.
What can be patented in the first place is its own question — see what is patentable — and expired-patent disputes fill the patent case archive.
How long does a trademark last?
Here’s the outlier: a trademark can last forever. Trademark rights exist to prevent consumer confusion, and as long as the mark keeps identifying your business in the marketplace, there’s no policy reason to end them. Marks in continuous use since the 1800s are still fully enforceable today.
“Forever” comes with homework. A federal registration survives only if the owner:
- Keeps actually using the mark in commerce — trademark rights follow use, always; and
- Files the maintenance documents: a Section 8 declaration of continued use between the 5th and 6th year after registration, then a combined Section 8 declaration and Section 9 renewal every 10 years, each with per-class fees currently in the few-hundred-dollar range — the filings are walked through in Section 8 and 9 renewals.
Miss the filings and the registration is cancelled (common-law rights from continued use can survive, but weakened). And two diseases can kill even a maintained mark:
- Abandonment: stop using the mark with no intent to resume — three consecutive years of nonuse creates a legal presumption of abandonment under the Lanham Act (15 U.S.C. § 1127).
- Genericide: the mark becomes the generic name for the product itself, and protection evaporates for everyone. Aspirin, escalator, cellophane, and thermos were all once exclusive brand names in the U.S.; each was litigated into the dictionary. This is why brand owners police usage so aggressively — “a Xerox brand copier,” never “a xerox.” Using the ® and ™ symbols correctly is part of that hygiene; see trademark and copyright symbols.
Real genericide and abandonment fights are collected in the trademark case archive.
How long does a trade secret last?
Indefinitely — until the secret gets out. Trade secret protection has no term, no renewal, and no fees; it lasts precisely as long as the information (1) stays not-generally-known and (2) remains subject to reasonable secrecy measures. The Coca-Cola formula has been protected for roughly 140 years — since 1886 — which is seven consecutive patent terms’ worth of exclusivity that a patent could never have delivered.
The flip side is brutal: one disclosure ends it forever. A leaked file, a departing employee’s upload, an over-shared pitch deck — once the information is genuinely public, protection cannot be restored, even if the leak was itself unlawful (you can sue the leaker for damages, but the world now knows). And trade secret law never stops independent invention or reverse engineering: if a competitor lawfully figures out your process on their own, they owe you nothing. What keeps information legally “secret” — and what conduct counts as misappropriation — is covered in what qualifies as a trade secret, with disputes in the trade secrets case archive.
How long does the right of publicity last?
During life, everywhere it’s recognized: your right of publicity lasts as long as you do. What happens after death is a genuine state-by-state patchwork:
- California: 70 years post-mortem for deceased “personalities” (Civil Code § 3344.1) — the reason estates of long-dead Hollywood stars still license their likenesses.
- New York: 40 years post-mortem, but only since its 2021 statute, and not retroactively for those who died before it.
- Indiana and Oklahoma: a full 100 years.
- Tennessee: effectively indefinite with continued commercial use (drafted with Elvis in mind, and updated by the 2024 ELVIS Act to cover voice cloning).
- Several states: no post-mortem right at all — protection ends at death.
Which state’s law applies typically turns on the person’s domicile at death, which has made state selection a genuine estate-planning issue for celebrities. The elements and state chart live in what is the right of publicity, with cases in the publicity case archive.
What the clocks mean for strategy
The differences between these terms aren’t trivia — they drive real decisions:
- Patent vs. trade secret is the classic term-driven choice. A patent gives ~20 strong years but requires publishing the recipe; a trade secret can run forever but dies on disclosure and never blocks reverse engineering. Rule of thumb: patent what the market could reverse-engineer from the product itself; keep secret what it can’t (Coca-Cola chose correctly).
- Brands are the only evergreen asset. Patents and copyrights are melting ice cubes; a maintained trademark appreciates. That’s why mature companies shift value into brand: when the design patents on an iconic product expire, its trade dress and marks keep competitors from passing off lookalikes.
- Filing-date math matters. Because utility patent terms run from filing, slow prosecution eats your monopoly — and in fast-moving fields, a patent granted in year four of a five-year product cycle may protect almost nothing that still matters.
- Copyright’s long tail is an asset class. Life-plus-70 means a catalog earns for a century; it’s why song catalogs sell for hundreds of millions.
If you’re still deciding which protections to pursue in the first place, which IP protection do you need walks the decision, and the price tags are in how much does IP protection cost.
What expiration actually releases
A timeline of one hypothetical product launched in 2026 — say, an innovative running shoe — shows how the layers peel off:
| Year | What expires | What the public may then do |
|---|---|---|
| ~2029–2032 | Nothing yet — utility patent grants; maintenance clock starts | Nothing new; full stack in force |
| ~2041 | Design patent (15 yrs from ~2026 grant) | Copy the ornamental sole design — unless it’s become protected trade dress |
| 2046 | Utility patents (20 yrs from 2026 filing), if fees were paid | Use the cushioning technology freely — it’s public domain |
| ~2120s | Copyright in the 2026 ad campaign (95 yrs, work for hire) | Reuse the ads, jingle, and photos freely |
| Never (potentially) | The trademarks — as long as use + renewals continue | Never: the brand name and logo stay off-limits |
| Never (unless leaked) | The manufacturing trade secret | Only via independent invention or reverse engineering |
When each right expires, what it covered falls into the public domain for that type: an expired patent’s invention is free for all to practice, an expired copyright’s work is free to copy and adapt, a dead trademark’s name returns to the available pool (carefully — residual goodwill can linger). Only trademarks and trade secrets can, in principle, never release at all. For the whole framework of how these rights fit together, start at the pillar: what is intellectual property.
The bottom line
IP terms range from 15 years to forever: copyright runs the author’s life plus 70 (or 95/120 for corporate works), utility patents get 20 years from filing minus whatever maintenance-fee neglect takes away, design patents get a flat 15 from grant, trademarks last as long as use and renewals continue, trade secrets last until the first leak, and the right of publicity runs a lifetime plus a state-dependent afterlife. Read every headline number with its fine print — from filing vs. from grant, fees vs. no fees, use requirements vs. none — because the fine print, not the headline, determines how long your protection actually survives.
This article is general legal information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and may not reflect the most current law in your area. IP terms and renewal deadlines turn on specific facts and filing dates. For advice about your situation, consult an attorney licensed in your jurisdiction.
Frequently asked questions
How long does a patent last?
A U.S. utility patent lasts 20 years from its earliest effective filing date — not from the grant date — so years spent in examination come out of your usable term (partially offset by patent term adjustment for USPTO delays). Design patents last 15 years from grant. Utility patents also require maintenance fees at 3.5, 7.5, and 11.5 years after grant; miss one and the patent expires early, which is how a large share of patents actually die before their full term.
How long does copyright last?
For works created in 1978 or later by an identified human author, copyright lasts the author's life plus 70 years. Works made for hire, anonymous, and pseudonymous works last 95 years from publication or 120 years from creation, whichever expires first. Older works follow different rules — most works published in the U.S. before 1978 got up to 95 years from publication, which is why a new year's worth of works (currently those from 1930) enters the public domain every January 1.
Can a trademark really last forever?
Yes — trademark is the only registered IP right with no maximum term. A federal registration continues indefinitely as long as the owner keeps genuinely using the mark in commerce and files the required maintenance documents: a Section 8 declaration of use between years 5 and 6, then combined Section 8 and Section 9 renewals every 10 years. The rights die only through abandonment (stopping use with no intent to resume) or genericide, where the name becomes the generic word for the product itself, as happened to aspirin and escalator.
Why do most patents expire before their full 20-year term?
Because keeping a utility patent alive costs money on a fixed schedule. The USPTO charges escalating maintenance fees at 3.5, 7.5, and 11.5 years after grant — running from roughly two thousand dollars to over eight thousand for large entities under the 2025 fee schedule — and an unpaid fee kills the patent early. Many owners run the math, conclude the invention no longer earns its keep, and deliberately let it lapse, which is why a large share of patents never reach year 20.
