Granted Patent
Utility
US 4,242,701 · App. 06/073,933
Color hardcopy from electronic information
Inventors:
Leon A. Levinson, John K. Cool
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Sep 10, 1979
Inventors
Leon A. Levinson
John K. Cool
Assignee (at issue)
Ixion, Inc.
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.