Granted Patent
Utility
US 4,292,599 · App. 06/004,707
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Inventor:
Stephen M. Bench
Patented Case
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Granted: Sep 29, 1981
Filed: Jan 19, 1979
Inventor
Stephen M. Bench
Assignee (at issue)
ANACONDA, 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.