Granted Patent
Utility
US 5,008,532 · App. 07/394,213
Light reception signal circuit for photoelectric switch
Inventors:
Shoichi Ono, Atsuhito Kobayashi
Patented Case
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Granted: Apr 16, 1991
Filed: Aug 15, 1989
Inventors
Shoichi Ono
Atsuhito Kobayashi
Assignee (at issue)
Chino Corporation
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.