Contains the images of each patent grant issued weekly (Tuesdays) from July 31, 1790 to present in Tagged Image File Format (TIFF) Revision 6.0 with CCITT Group 4 Compression (multi-page TIFFs) from the USPTO USAPat optical disc product (discontinued 12/31/2011). Also included are older grants that have new Certificates-of-Correction (C-of-C) and rescanned images of older patent grants.
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