Granted Patent
Utility
US 4,613,224 · App. 06/692,631
Motor driver for auto-focus camera
Inventor:
Akira Ogasawara
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Jan 18, 1985
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.