Granted Patent
Utility
US 5,427,031 · App. 08/065,458
Detonator primer capsule
Inventor:
Arthur F. Bowman
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: May 20, 1993
Inventor
Arthur F. Bowman
Assignee (at issue)
ICI Explosives USA 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.