Granted Patent
Utility
US 4,874,937 · App. 07/023,719
Digital sun sensor
Inventor:
Tsuguhiko Okamoto
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Mar 9, 1987
Inventor
Tsuguhiko Okamoto
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.