Granted Patent
Utility
US 5,487,020 · App. 08/180,295
Refinement of color images using reference colors
Inventor:
Timothy Long
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Jan 12, 1994
Inventor
Timothy Long
Assignees (at issue)
Canon Information Systems Research Australia Pty. Ltd.
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.