Granted Patent
Utility
US 4,745,425 · App. 06/915,011
Automatic focus control apparatus
Inventor:
Yosuke Kusaka
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Oct 3, 1986
Inventor
Yosuke Kusaka
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.