Granted Patent
Utility
US 5,052,302 · App. 07/558,019
Unpressurized combustible primer for cannon cartridges
Inventors:
Ralph M. Taddeo, Robert W. Deas, Lang-Mann Chang, John Grosh
Patented Case
View Patent ↗
Granted: Oct 1, 1991
Filed: Jul 26, 1990
Inventors
Ralph M. Taddeo
Robert W. Deas
Lang-Mann Chang
John Grosh
Assignees (at issue)
Olin Corporation
United States Government Department of Defense
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.