Granted Patent
Utility
US 4,681,016 · App. 06/606,209
Rail gun barrel with gas containment means
Inventor:
Richard L. Creedon
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: May 2, 1984
Inventor
Richard L. Creedon
Assignee (at issue)
GA Technologies, 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.