Granted Patent
Utility
US 4,857,948 · App. 07/167,149
Camera
Inventors:
Jun Akabane, Ken Moro, Masayasu Yamamoto
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Mar 11, 1988
Inventors
Jun Akabane
Ken Moro
Masayasu Yamamoto
Assignee (at issue)
NIKON CORPORATION
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.