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Patent number:
Patent Date:
Patent Issue Date Details
This table shows patent issue date data.
Grant Date shotgunLast Utility
patent number
Utility Count Datamp CountWithdrawn count
1927-08-021,638,00567970
1927-08-091,638,816811160
1927-08-161,639,64582990
1927-08-231,640,33969450
1927-08-301,641,14280360
The 'shotgun' links will bring up a page that lets you quickly click on the utility patents issued on the date selected. Clicks in the Datamp Count column will bring up the patents in the datamp database that have the grant date of the row selected. Clicks in the withdrawn column will bring up a page showing withdrawn patents that were originally issued on the grant date for the selected row.