Granted Patent
Utility
US 4,350,097 · App. 06/150,817
Nonelectric delay detonator with tubular connecting arrangement
Inventors:
Arthur F. Bowman, David BORG
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: May 19, 1980
Inventors
Arthur F. Bowman
David BORG
Assignee (at issue)
Atlas Powder Company
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.