How long royalties last depends entirely on what kind of asset is producing them. Copyright on a book or song written today runs for the author’s life plus 70 years. A utility patent expires 20 years after the application was filed. Mineral and oil royalties have no statutory clock at all: they last as long as the well keeps producing under the lease. The exact duration turns on the type of intellectual property, when it was created, and whether the owner keeps up with required fees or filings.
Book and Artistic Copyright Terms
For anything written, painted, photographed, or otherwise created on or after January 1, 1978, the copyright lasts for the author’s life plus 70 years. That timeline comes from 17 U.S.C. § 302 and applies uniformly to creative works by an identified individual author.1Office of the Law Revision Counsel. 17 USC 302 – Duration of Copyright: Works Created on or After January 1, 1978 Heirs and estates collect royalties across those 70 posthumous years without renewing anything.
When no single lifespan can measure the term, the math changes. Works made for hire, anonymous works, and pseudonymous works get 95 years from first publication or 120 years from creation, whichever ends first.1Office of the Law Revision Counsel. 17 USC 302 – Duration of Copyright: Works Created on or After January 1, 1978 A company that published a work-for-hire book in 1990 holds the copyright until 2085.
Works Published Before 1978
Older works run on 17 U.S.C. § 304. Works still under copyright when the Sonny Bono Copyright Term Extension Act took effect in 1998 got a total term of 95 years from the date copyright was originally secured.2Office of the Law Revision Counsel. 17 U.S. Code 304 – Duration of Copyright: Subsisting Copyrights The older regime gave 28 years plus a 28-year renewal, for 56 total. If the original author or estate failed to renew inside the initial 28-year window, the copyright lapsed for good.
In practical terms, a book published in 1940 and properly renewed holds copyright until 2035. A 1935 book on the same path entered the public domain in 2030.
Music Royalty Terms
Music involves two separate copyrights that often expire years apart. The underlying composition (melody and lyrics) follows the standard life-plus-70 rule. The sound recording, meaning the specific studio performance, frequently qualifies as a work for hire and carries the 95-year term from publication.1Office of the Law Revision Counsel. 17 USC 302 – Duration of Copyright: Works Created on or After January 1, 1978 A song recorded in 1985 by a songwriter who dies in 2030 would see the composition enter the public domain in 2100, while the recording’s copyright could run until 2080.
Pre-1972 Sound Recordings
Sound recordings made before February 15, 1972, once existed in a legal gray area with no federal copyright, covered only by a patchwork of state laws. The Classics Protection and Access Act, part of the 2018 Music Modernization Act, brought them under federal protection on a staggered schedule. Recordings published before 1923 have already entered the public domain. More recent pre-1972 recordings receive federal protection running into the 2060s, which lets legacy artists and labels collect on streaming and broadcast of tracks that were previously unprotected federally.
Patent Royalty Terms
Utility Patents
Utility patents protect new and useful processes, machines, and compositions of matter. Under 35 U.S.C. § 154, the term is 20 years from the filing date of the application.3Office of the Law Revision Counsel. 35 USC 154 – Contents and Term of Patent; Provisional Rights The clock starts at filing, not grant, so time spent waiting on the USPTO eats into the effective life of the patent. An inventor who files in 2026 and receives a grant in 2029 has 17 enforceable years left.
Keeping a utility patent alive for the full term requires paying maintenance fees at three intervals after grant. The 2026 fee schedule:
- 3.5 years after grant: $2,150 large entity, $860 small entity, $430 micro entity
- 7.5 years after grant: $4,040 large entity, $1,616 small entity, $808 micro entity
- 11.5 years after grant: $8,280 large entity, $3,312 small entity, $1,656 micro entity
Miss a payment and the patent lapses; the invention becomes free for anyone to make. Small entities pay 60% less than the standard rate and micro entities pay 80% less.4United States Patent and Trademark Office. Maintain Your Patent A grace period with a surcharge is available if you miss the initial window, but once it closes, the patent is gone.
Design Patents
Design patents cover the ornamental appearance of a functional item rather than how it works. Under 35 U.S.C. § 173, they last 15 years from the date of grant.5Office of the Law Revision Counsel. 35 USC 173 – Term of Design Patent No maintenance fees apply; the 15-year term runs uninterrupted once granted.
Extensions to the Patent Term
The 20-year utility term is not always final. When the USPTO causes administrative delays during prosecution, the patent holder gets a day-for-day extension under 35 U.S.C. § 154(b). Common triggers include the USPTO taking more than 14 months for its first substantive response, missing a four-month deadline to answer an applicant’s reply, or exceeding three years total to issue.6Office of the Law Revision Counsel. 35 U.S. Code 154 – Contents and Term of Patent; Provisional Rights These adjustments can add months or years.
Pharmaceutical patents get a separate extension under 35 U.S.C. § 156. Because drugs and medical devices sit through lengthy regulatory review before they can be sold, patent holders can recover some of the time lost to FDA approval. The extension is roughly half the clinical testing period plus the full FDA review period, capped at five years, and the total remaining patent life after approval cannot exceed 14 years.7Office of the Law Revision Counsel. 35 U.S. Code 156 – Extension of Patent Term That is why brand-name drug patents sometimes appear to stretch past 20 years.
Mineral and Oil Royalty Terms
Mineral and oil royalties have no federally mandated duration. They run on private contracts between the landowner and the extraction company. Most leases begin with a primary term of three to five years during which the company must start drilling or exploration. If nothing happens in that window, the lease terminates and the rights revert to the landowner.
Once production starts, the lease enters a secondary term that continues as long as the well produces in paying quantities, meaning enough revenue to cover costs and return at least a modest profit for the operator. When production drops below that threshold or stops, the lease usually ends and royalty payments cease. Families can hold these interests for decades, passing them through deeds and wills, as long as the ground keeps producing.
Shut-In Royalties
A well capable of producing but lacking a market for its output creates a problem: the lease could technically terminate for lack of production. Shut-in clauses let the operator make small payments to the landowner that stand in for actual production and keep the lease alive. Amounts are set in the original lease and run well below active production royalties, but they preserve the landowner’s long-term interest.
Reclaiming Rights After 35 Years
Copyrights signed away after January 1, 1978, can be taken back 35 years later under 17 U.S.C. § 203. This covers any transfer or license, whether you sold rights outright or granted an exclusive license to a publisher or label. The recapture window opens 35 years after you signed and stays open five years.8Office of the Law Revision Counsel. 17 U.S. Code 203 – Termination of Transfers and Licenses Granted by the Author
If the deal specifically covered publication rights, the window begins 35 years after publication or 40 years after the deal was signed, whichever comes first.8Office of the Law Revision Counsel. 17 U.S. Code 203 – Termination of Transfers and Licenses Granted by the Author Written notice must be served on the publisher or label between two and ten years before the chosen termination date, and a copy must be recorded with the Copyright Office before that date arrives.
One major exception: works made for hire cannot be reclaimed this way.9United States Copyright Office. Chapter 2: Copyright Ownership and Transfer If you created the work as an employee or under a work-for-hire agreement, the 35-year right does not apply. For everyone else, an author who signed a publishing deal in 1995 can terminate starting in 2030; a songwriter who assigned composition rights in 2000 can reclaim them starting in 2035. If the creator dies before the window opens, the surviving spouse, children, or grandchildren can exercise the right instead.
What Happens When the Term Ends
When the legal clock runs out on any of these protections, the asset enters the public domain. No further licenses are needed, no royalties are owed, and anyone can print, perform, adapt, or manufacture the formerly protected work or invention. A utility patent that hits 20 years becomes free for any competitor to use. A novel whose copyright expires can be republished, translated, or filmed by anyone without permission or payment.
Once an asset enters the public domain, it stays there. It cannot be re-copyrighted or re-patented under virtually any circumstances. That is the underlying bargain of intellectual property law: exclusive rights for a limited time, then public access forever.