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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
1981-03-034,254,5061,31039
1981-03-104,255,8161,31036
1981-03-174,257,1261,31066
1981-03-24258,694-3,998,43206
1981-03-244,258,4363,999,74206
1981-03-2430,556-4,227,88006
1981-03-314,259,7464,229,190015
1981-03-3130,564-4,229,182015
1981-03-31258,769228,205015
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 Clicks in the withdrawn column will bring up a page showing withdrawn patents that were originally issued on the grant date for the selected row.