30 U.S.C. § 33: Existing rights

All patents for mining claims upon veins or lodes issued prior to May 10, 1872, shall convey all the rights and privileges conferred by sections 21, 22 to 24, 26 to 28, 29, 30, 33 to 48, 50 to 52, 71 to 76 of this title and section 661 of title 43 where no adverse rights existed on the 10th day of May, 1872.