Granted Patent
Utility
US 4,235,510 · App. 06/025,543
Binoculars with cover members
Inventor:
Akira Sato
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Mar 30, 1979
Inventor
Akira Sato
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.