Granted Patent
Utility
US 4,381,521 · App. 06/337,747
Optical finder system for a video camera
Inventors:
Yozo Iida, Soichi Nakamura
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Jan 7, 1982
Inventors
Yozo Iida
Soichi Nakamura
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.