Reproduced below is the Patent Novelty Statute, 35 U.S.C. 102 as amended by the America Invents Act. It is also available at uspto.gov.
(a) NOVELTY; PRIOR ART.—A person shall be entitled to a patent unless—
(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention; or