Granted Patent
Utility
US 4,150,656 · App. 05/765,555
Gas fired gun with gas cartridge puncture device
Inventor:
Roger J. Curran
Patented Case
View Patent ↗
Granted: Apr 24, 1979
Filed: Feb 4, 1977
Inventor
Roger J. Curran
Assignee (at issue)
Bangor Punta Operations, Inc.
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.