Granted Patent
Utility
US 4,370,044 · App. 06/325,821
Electric wind-up device of a camera
Inventor:
Osamu Maida
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: Nov 30, 1981
Inventor
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.