Granted Patent
Utility
US 5,838,504 · App. 08/624,776
Prism and real image type view finder
Inventors:
Yuichi Ichikawa, Sachio Hasushita, Ryouzi Sekiguchi
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Mar 27, 1996
Inventors
Yuichi Ichikawa
Sachio Hasushita
Ryouzi Sekiguchi
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.