Granted Patent
Utility
US 4,492,329 · App. 06/619,364
Powder actuated tool
Inventors:
John Benson, Harold L. Hanel, Douglas A. Freeman
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Jun 11, 1984
Inventors
John Benson
Harold L. Hanel
Douglas A. Freeman
Assignee (at issue)
International Telephone and Telegraph 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.