The Speed Dial Screen ........................................................................................................................ 13. Working in the Speed Dial Screen ........................................................................................................ 14. Managing Your Speed Dial List ...........................................................................................................
(As of year 2005). Answer: Utility and plant patents are granted for a term which begins with the date of the grant and usually ends 20 years from the date the applications were filed. You must make the timely payment of the appropriate maintenance fees. Design patents last 14 years from the date you are granted the patent. No maintenance fees are required for design patents.
How long a patent lasts depends on when the application was filed with the U.S. Patent and Trademark Office. For U.S. patents filed through June 17, 1995, the patent lasts for 17 years from the date the patent is issued, provided that the fees necessary to keep the patent in force (maintenance fees) are paid.