Granted Patent
Utility
US 5,158,505 · App. 07/657,652
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Inventor:
Dennis A. Woyach
Patented Case
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Granted: Oct 27, 1992
Filed: Feb 19, 1991
Inventor
Dennis A. Woyach
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.