Granted Patent
Utility
US 5,048,421 · App. 07/562,774
Combustible cartridge case base
Inventor:
Terry L. Swartout
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Aug 6, 1990
Inventor
Terry L. Swartout
Assignee (at issue)
Olin 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.