Granted Patent
Utility
US 4,215,611 · App. 06/013,481
Apparatus for straight line shearing
Inventor:
Francis A. Dahms
Patented Case
View Patent ↗
Granted: Aug 5, 1980
Filed: Feb 21, 1979
Inventor
Francis A. Dahms
Assignee (at issue)
Emhart 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.