Granted Patent
Utility
US 4,407,573 · App. 06/266,103
Pop up flash device control for a camera
Inventors:
Hiroshi Wakabayashi, Kazuyuki Kazami, Yoshiaki Ohtsubo, Shigeo Akasaka
Patented Case
View Patent ↗
Granted: Oct 4, 1983
Filed: May 21, 1981
Inventors
Hiroshi Wakabayashi
Kazuyuki Kazami
Yoshiaki Ohtsubo
Shigeo Akasaka
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.