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Patent Date:
Patent Issue Date Details
This table shows patent issue date data.
Grant Date shotgunLast Utility
patent number
Utility Count Datamp CountWithdrawn count
1918-01-011,252,379922413
1918-01-081,253,199820158
1918-01-151,254,013814136
1918-01-221,254,641628283
1918-01-291,255,120479106
1918-02-051,255,840720130
1918-02-121,256,506666100
1918-02-191,257,298792103
1918-02-261,257,961663101
1918-03-051,258,639678162
1918-03-121,259,467828163
1918-03-191,260,328861213
1918-03-261,260,99867072
1918-04-021,261,749751121
1918-04-091,262,613864125
1918-04-161,263,355742160
1918-04-231,264,134779151
1918-04-301,264,879745122
1918-05-071,265,717838110
1918-05-141,266,539822360
1918-05-211,267,349810139
1918-05-281,268,07872989
1918-06-041,268,808730154
1918-06-111,269,570762150
1918-06-181,270,252682112
1918-06-251,270,76150963
1918-07-021,271,53076972
1918-07-091,272,348818216
1918-07-161,273,11576762
1918-07-231,273,799684110
1918-07-301,274,36056182
1918-08-061,275,189829195
1918-08-131,275,996807133
1918-08-201,276,701705122
1918-08-271,277,34864732
1918-09-031,278,08373563
1918-09-101,278,814731101
1918-09-171,279,488674110
1918-09-241,280,127639110
1918-10-011,280,620493110
1918-10-081,281,257637121
1918-10-151,282,017760150
1918-10-221,282,720703122
1918-10-291,283,44572583
1918-11-051,284,205760181
1918-11-121,284,956751102
1918-11-191,285,571615113
1918-11-261,286,193622102
1918-12-031,286,894701140
1918-12-101,287,603709120
1918-12-171,288,45885560
1918-12-241,289,065607101
1918-12-311,290,02696160
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 Clicks in the withdrawn column will bring up a page showing withdrawn patents that were originally issued on the grant date for the selected row.