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This information describes only U.S. Patents.

For utility applications filed on or after June 8, 1995, the patent expires 20 years from the filing date of the earliest U.S. application to which priority is claimed (excluding provisional applications).

For utility applications that were pending on and for patents that were still in force on June 8, 1995, the patent expires either 17 years from the issue date or 20 years from the filing date of the earliest U.S. or international (PCT) application to which priority is claimed (excluding provisional applications), the longer term applying.

Design patents expire 14 years from the date of issue.

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Q: How do patents expire?
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Related questions

Are there examples of patents with a time limit?

ALL US patents expire within a timeframe.


Patents after 20 years?

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