Granted Patent
Utility
US 5,237,401 · App. 07/694,494
Color image reading apparatus including color correction means
Inventors:
Keiichi Koike, Tsuneo Sato, Masatoshi Katoh
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: May 2, 1991
Inventors
Keiichi Koike
Tsuneo Sato
Masatoshi Katoh
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.