Granted Patent
Utility
US 4,025,029 · App. 05/656,615
Hammer-activated powder-actuated fastening tool
Inventors:
John A. Kotas, Eugene J. Haupt
Patented Case
View Patent ↗
Granted: May 24, 1977
Filed: Feb 9, 1976
Inventors
John A. Kotas
Eugene J. Haupt
Assignee (at issue)
Desa Industries, 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.