Granted Patent
Utility
US 4,266,780 · App. 06/093,907
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Inventor:
Kenneth L. McQuary
Patented Case
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Granted: May 12, 1981
Filed: Nov 13, 1979
Inventor
Kenneth L. McQuary
Assignee (at issue)
Placo Products Company
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.