Granted Patent
Utility
US 5,236,489 · App. 07/816,354
Shear mechanism safety
Inventors:
John N. Brancati, Robert L. Doughty
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Dec 24, 1991
Inventors
John N. Brancati
Robert L. Doughty
Assignee (at issue)
Emhart Glass Machinery Investments 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.