- Expiration of Patent
- Termination of the enforceability period of a patent at the end of the patent term or for failure to pay a maintenance fee. Patent terms prior to 1995 were 17 years from the date that the patent application was issued. However, current law measures the term of a patent 20 years from the date that the patent application is filed. Design patents last 14 years.
© 1999- 2019 Smith and Hopen, P.A.
SMITH & HOPEN® and logo are federally registered trademarks.