Description:
Site includes two databases from the U.S. Patent and Trademark Office (PTO). One database is of issued patents since 1790 and the other is of published patent applications since 15 March 2001. Patents from 1790 to 1976 are full-image only, patents from 1976 and applications are full-image and full-text
Subject:
Patents -- United States -- Indexes; Patents -- United States -- Databases
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