Granted Patent
Utility
US 5,913,087 · App. 08/939,100
Indicating apparatus within viewfinder of single lens reflex camera
Inventor:
Isamu Hirai
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Sep 26, 1997
Inventor
Isamu Hirai
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.