Granted Patent
Utility
US 4,353,459 · App. 06/125,593
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Inventor:
Victor D. Petershack
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Feb 28, 1980
Inventor
Victor D. Petershack
Assignee (at issue)
REXNORD GMBH
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.