Granted Patent
Utility
US 4,730,201 · App. 07/072,530
Automatic focus adjustment apparatus
Inventor:
Nobuaki Sasagaki
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Jul 13, 1987
Inventor
Nobuaki Sasagaki
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.