Granted Patent
Utility
US 4,410,256 · App. 06/364,798
Electric shutter device having a reciprocating shutter charging member
Inventors:
Akihiko Sato, Yoshiyuki Nakano
Patented Case
View Patent ↗
Granted: Oct 18, 1983
Filed: Apr 2, 1982
Inventors
Akihiko Sato
Yoshiyuki Nakano
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.