Granted Patent
Utility
US 6,478,489 · App. 09/774,820
Printer rollfeed media tension system with friction ring
Inventor:
Lluis Hierro
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 31, 2001
Inventor
Lluis Hierro
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.