Granted Patent
Utility
US 4,244,162 · App. 06/064,269
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Inventor:
Richard A. Pucher
Patented Case
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Granted: Jan 13, 1981
Filed: Aug 6, 1979
Inventor
Richard A. Pucher
Assignee (at issue)
Sperry Corp.
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.