Granted Patent
Utility
US 5,521,685 · App. 08/450,756
Foam roller cleaning system for a liquid electrophotographic printer
Inventors:
Kristina J. Barnes, John A. Thompson
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: May 25, 1995
Inventors
Kristina J. Barnes
John A. Thompson
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.