Granted Patent
Utility
US 4,613,759 · App. 06/616,699
Small photoelectric reading apparatus
Inventor:
Hugh F. Frohbach
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Jun 4, 1984
Inventor
Hugh F. Frohbach
Assignee (at issue)
Nippon Kogaku 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.