Granted Patent
Utility
US 4,313,479 · App. 05/700,881
Draw shear
Inventor:
Samuel J. Coughran, Jr.
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Jun 29, 1976
Inventor
Samuel J. Coughran, Jr.
Assignee (at issue)
Rome 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.