Granted Patent
Utility
US 5,347,692 · App. 08/169,053
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Inventor:
Hirokazu Ebata
Patented Case
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Granted: Sep 20, 1994
Filed: Dec 20, 1993
Inventor
Hirokazu Ebata
Assignee (at issue)
Yoshida Kogyo K.K.
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.