Granted Patent
Utility
US 4,316,660 · App. 06/139,769
Alarm device in an automatic exposure camera
Inventors:
Yoshiakai Ohtsubo, Sakuji Watanabe
Patented Case
View Patent ↗
Granted: Feb 23, 1982
Filed: Apr 14, 1980
Inventors
Yoshiakai Ohtsubo
Sakuji Watanabe
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.