PUBLIC LAW 103-179—DEC. 3, 1993 107 STAT. 2043 SEC. 8. INTERVENING RIGHTS. ^ The renewals and extensions of the patents under section 6 shall not result in infringement of any such patent on account of any use of the subject matter of uie patent, or substantial preparation for such use, which began after the patent expired, but before the date of the enactment of this Act. Approved December 3, 1993. LEGISLATIVE HISTORY—H.R. 2632: HOUSE REPORTS: No. 103-285 (Coram, on the Judiciary). CONGRESSIONAL RECORD, Vol. 139 (1993): Oct. 12, considered and. passed House. Nov. 10, considered and passed Senate, amended. Nov. 19, House concurred in Senate amendraent with amendments. Nov. 20, Senate concurred in House amendments.