Granted Patent
Utility
US 4,414,469 · App. 06/321,076
Automatic focusing apparatus with detection only when the lens is stationary
Inventor:
Akira Ogasawara
Patented Case
View Patent ↗
Granted: Nov 8, 1983
Filed: Nov 13, 1981
Inventor
Akira Ogasawara
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.