1996—Subsec. (a)(1)(B)(i).
Pub. L. 104–127 inserted “, except that in the case of a tuber propagated plant variety the Secretary may waive the 4-year limitation for a period ending 1 year after April 4, 1996” after “filing”.
1994—
Pub. L. 103–349 amended section generally, substituting present provisions for substantially similar former provisions.
Amendment by
Pub. L. 103–349 effective 180 days after Oct. 6, 1994, see section 15 of
Pub. L. 103–349, set out as a note under section
2401 of this title.