Granted Patent
Utility
US 4,719,486 · App. 06/809,408
Focus detecting apparatus for camera
Inventors:
Kunihisa Hoshino, Ken Utagawa, Yosuke Kusaka, Shozo Yamano
Patented Case
View Patent ↗
Granted: Jan 12, 1988
Filed: Dec 16, 1985
Inventors
Kunihisa Hoshino
Ken Utagawa
Yosuke Kusaka
Shozo Yamano
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.