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Patent Issue Date Details
This table shows patent issue date data.
Grant Date shotgunLast Utility
patent number
Utility Count Datamp CountWithdrawn count
1920-01-061,327,605707111
1920-01-131,328,252647121
1920-01-201,328,80154961
1920-01-271,329,35155072
1920-02-031,330,046695121
1920-02-101,330,772726104
1920-02-171,331,47570391
1920-02-241,332,19171653
1920-03-021,332,87368283
1920-03-091,333,593720103
1920-03-161,334,273680132
1920-03-231,334,941668111
1920-03-301,335,716775173
1920-04-061,336,40669090
1920-04-131,337,180774141
1920-04-201,337,985805102
1920-04-271,338,662677151
1920-05-041,339,380718112
1920-05-111,340,138758121
1920-05-181,340,86772941
1920-05-251,341,626759101
1920-06-011,342,410784204
1920-06-081,343,188778122
1920-06-151,343,89070261
1920-06-221,344,60771763
1920-06-291,345,33672940
1920-07-061,346,10076473
1920-07-131,346,80470481
1920-07-201,347,48468081
1920-07-271,348,14466022
1920-08-031,348,83669245
1920-08-101,349,55271684
1920-08-171,350,28973753
1920-08-241,351,01472571
1920-08-311,351,72671261
1920-09-071,352,419693113
1920-09-141,353,134715103
1920-09-211,353,81668252
1920-09-281,354,46064455
1920-10-051,355,11565572
1920-10-121,355,80268793
1920-10-191,356,507705113
1920-10-261,357,211704102
1920-11-021,357,93372272
1920-11-091,358,69075760
1920-11-161,359,47778773
1920-11-231,360,25177485
1920-11-301,360,99374260
1920-12-071,361,798805133
1920-12-141,362,58578772
1920-12-211,363,208623121
1920-12-281,364,062854183
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 Clicks in the withdrawn column will bring up a page showing withdrawn patents that were originally issued on the grant date for the selected row.