Granted Patent
Utility
US 5,126,839 · App. 07/129,365
Color image processing apparatus
Inventor:
Susumu Sugiura
Patented Case
View Patent ↗
Granted: Jun 30, 1992
Filed: Nov 30, 1987
Inventor
Susumu Sugiura
Assignee (at issue)
CANON 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.