Granted Patent
Utility
US 4,476,383 · App. 06/391,864
Photometering device for obtaining exposure information
Inventors:
Toru Fukuhara, Takashi Saegusa
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jun 24, 1982
Inventors
Toru Fukuhara
Takashi Saegusa
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.