Granted Patent
Utility
US 5,189,938 · App. 07/814,744
Shear mechanism having quick change drop guide
Inventor:
William C. Tintle
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Dec 24, 1991
Inventor
William C. Tintle
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.