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  1. Patent Databases

  2. Description: Bibliographic and full-text content of U.S. patents from U.S. Patent and Trademark Office web database.
  3. Host URL: http://www.uspto.gov/patft/index.html
  4. Coverage: Includes full-text patents, images of patents, and published patent applications.
  5. Time Span: Full-text 1976 to present, images since 1790, applications since 2001.