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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
1920-01-061,327,60570791
1920-01-131,328,25264791
1920-01-201,328,80154941
1920-01-271,329,35155052
1920-02-031,330,04669561
1920-02-101,330,77272664
1920-02-171,331,47570361
1920-02-241,332,19171643
1920-03-021,332,87368253
1920-03-091,333,59372093
1920-03-161,334,27368092
1920-03-231,334,941668101
1920-03-301,335,71677583
1920-04-061,336,40669040
1920-04-131,337,18077471
1920-04-201,337,98580562
1920-04-271,338,66267791
1920-05-041,339,38071852
1920-05-111,340,13875861
1920-05-181,340,86772941
1920-05-251,341,62675971
1920-06-011,342,410784104
1920-06-081,343,18877862
1920-06-151,343,89070241
1920-06-221,344,60771743
1920-06-291,345,33672940
1920-07-061,346,10076443
1920-07-131,346,80470471
1920-07-201,347,48468041
1920-07-271,348,14466022
1920-08-031,348,83669225
1920-08-101,349,55271644
1920-08-171,350,28973723
1920-08-241,351,01472551
1920-08-311,351,72671231
1920-09-071,352,41969333
1920-09-141,353,13471573
1920-09-211,353,81668242
1920-09-281,354,46064435
1920-10-051,355,11565532
1920-10-121,355,80268743
1920-10-191,356,50770563
1920-10-261,357,21170432
1920-11-021,357,93372242
1920-11-091,358,69075730
1920-11-161,359,47778753
1920-11-231,360,25177485
1920-11-301,360,99374240
1920-12-071,361,79880563
1920-12-141,362,58578732
1920-12-211,363,20862371
1920-12-281,364,062854133
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 Clicks in the withdrawn column will bring up a page showing withdrawn patents that were originally issued on the grant date for the selected row.