Category Archives: X patents

Early U.S. Patents Recovered

Posted on May 5, 2008 by mjwhitekingston

The USPTO has recently added to its patent database approximately 500 patents issued from 1790-1836 that were lost for 175 years. These documents were among the approximately 10,000 patents destroyed when the Patent Office, which was located in Blodgett’s Hotel … Continue reading →

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