Granted Patent
Utility
US 6,134,021 · App. 08/053,364
Presentation graphics system for a color laser copier
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Apr 28, 1993
Inventor
Kia Silverbrook
Assignees (at issue)
CANON KABUSHIKI KAISHA
Canon Information Systems Research Australia Pty. Ltd.
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.