Granted Patent
Utility
US 6,296,350 · App. 08/823,594
Ink jet printer having driver circuit for generating warming and firing pulses for heating elements
Inventors:
Robert W. Cornell, Bruce David Gibson
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Mar 25, 1997
Inventors
Robert W. Cornell
Bruce David Gibson
Assignee (at issue)
Lexmark International, 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.