Granted Patent
Utility
US 4,395,938 · App. 06/193,835
Gas cylinder plug for a gas operated machine gun
Inventor:
George F. Curtis
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Oct 3, 1980
Inventor
George F. Curtis
Assignee (at issue)
Maremont 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.