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DATAMP Patents by Date for May 1921
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
31,376,438RE15,098D57,768--[datamp][all]
101,377,178-D57,812--[datamp][all]
171,378,209----[datamp][all]
241,379,297-D57,986--[datamp][all]
311,379,755RE15,115---[datamp][all]