Granted Patent
Utility
US 4,704,022 · App. 06/904,491
Video finder for single-lens reflex camera
Inventors:
Hideyo Nozawa, Toshiro Hara, Masahiro Juen
Patented Case
View Patent ↗
Granted: Nov 3, 1987
Filed: Sep 8, 1986
Inventors
Hideyo Nozawa
Toshiro Hara
Masahiro Juen
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.