Granted Patent
Utility
US 4,636,054 · App. 06/818,912
Photometric method and apparatus for cameras
Inventor:
Takashi Saegusa
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Jan 15, 1986
Inventor
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.