Granted Patent
Utility
US 4,558,935 · App. 06/613,607
Camera provided with means for detecting information on film cartridge
Inventors:
Sunao Ishizaka, Osamu Maida
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: May 24, 1984
Inventors
Sunao Ishizaka
Osamu Maida
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.