Granted Patent
Utility
US 4,482,235 · App. 06/441,787
Automatic focusing device for camera
Inventors:
Seiichi Yasukawa, Nobuhiko Terui, Toru Fukuhara
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Nov 15, 1982
Inventors
Seiichi Yasukawa
Nobuhiko Terui
Toru Fukuhara
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.