Granted Patent
Utility
US 6,089,768 · App. 09/072,601
Print ribbon feeder and detection system
Inventors:
Gordon B. Barrus, Greg J. Anderson
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: May 5, 1998
Inventors
Gordon B. Barrus
Greg J. Anderson
Assignee (at issue)
PRINTRONIX, LLC
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.