Granted Patent
Utility
US 4,472,033 · App. 06/389,938
Zoom lens having an automatic focus detecting device
Inventors:
Toru Fukuhara, Kunio Konno
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jun 18, 1982
Inventors
Toru Fukuhara
Kunio Konno
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.