Granted Patent
Utility
US 4,475,802 · App. 06/550,640
Apparatus for determining shutter speed adapted for a photographing apparatus in a microscope
Inventor:
Kenji Onogi
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Nov 10, 1983
Inventor
Kenji Onogi
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.