Granted Patent
Utility
US 5,709,481 · App. 08/646,762
Apparatus for creating back tension in a printer/plotter system
Inventors:
Antonio Hinojosa, Richard Lewis
Patented Case
View Patent ↗
Granted: Jan 20, 1998
Filed: Apr 29, 1996
Inventors
Antonio Hinojosa
Richard Lewis
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.