What are intervening rights in reinstated patents?
Intervening rights in reinstated patents are legal protections provided by 35 U.S.C. 41(c)(2) for individuals or businesses who used or made substantial preparations to use a patented invention during the period when the patent had lapsed due to non-payment of maintenance fees, but before it was reinstated.
According to MPEP § 2591:
“No patent, the term of which has been maintained as a result of the acceptance of a late payment of a maintenance fee, shall abridge or affect the right of any person or his or her successors in business who made, purchased, imported, or used after the 6-month grace period but prior to the acceptance of the late maintenance fee anything protected by the patent, to continue the use or importation of, or to sell to others to be used or sold, the specific things made, purchased, imported, or used.”
This means that certain activities related to the patented invention may be allowed to continue, even after the patent is reinstated, to protect investments made during the lapse period.
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