Granted Patent
Utility
US 4,447,719 · App. 06/342,776
Automatic focus adjusting apparatus using weighted average means
Inventor:
Akira Ogasawara
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Jan 26, 1982
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.