Granted Patent
Utility
US 4,519,683 · App. 06/643,695
Electronic flash apparatus
Inventors:
Nobuyoshi Hagyuda, Hiroshi Hasegawa, Yoshikazu Iida, Osamu Maida
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Aug 24, 1984
Inventors
Nobuyoshi Hagyuda
Hiroshi Hasegawa
Yoshikazu Iida
Osamu Maida
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.