Granted Patent
Utility
US 4,407,574 · App. 06/418,292
Camera with focal plane shutter
Inventors:
Naoki Tomino, Masaaki Tsukamoto
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: Sep 15, 1982
Inventors
Naoki Tomino
Masaaki Tsukamoto
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.