Granted Patent
Utility
US 4,287,549 · App. 06/102,829
Circuit for charging a release magnet energizing capacitor in a camera
Inventors:
Hiroshi Hasegawa, Osamu Maida
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Dec 12, 1979
Inventors
Hiroshi Hasegawa
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.