More details to this question:
i was trying to come up with money to keep it going but now i see someone took my invention and marketed it i have all papers and drawlings and picture of my invention do i have rights.
1 ANSWER
What do you mean by "ran out" Did the patent expire at the end of its 20 year term from filing or did it lapse for failure to pay a maintenance fee. If it expired, unless the infringement started before the patent expired, there is nothing that you can do. On the other hand, if it lapsed for failure to pay a maintenance fee, it can be revived.
Answered on Sep 09th, 2015 at 12:05 PM