Granted Patent
Utility
US 4,334,745 · App. 06/141,587
Exposure indicating device for a camera utilizing analog-digital converter
Inventor:
Osamu Maida
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Apr 18, 1980
Inventor
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.