Granted Patent
Utility
US 4,589,604 · App. 06/554,379
Camera device
Inventors:
Michio Yagi, Eiji Ito
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Nov 25, 1983
Inventors
Michio Yagi
Eiji Ito
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.