Granted Patent
Utility
US 5,081,930 · App. 07/492,903
Gun propellant containing ammonium azide and an inert casing
Inventor:
Laurence O. Williams
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: Mar 13, 1990
Inventor
Laurence O. Williams
Assignee (at issue)
LOCKHEED MARTIN CORPORATION
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.