Granted Patent
Utility
US 4,377,626 · App. 06/289,933
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Inventor:
Casimir J. Kurowski
Patented Case
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Granted: Mar 22, 1983
Filed: Aug 4, 1981
Inventor
Casimir J. Kurowski
Assignee (at issue)
Western Electric Company, 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.