Granted Patent
Utility
US 6,042,946 · App. 09/124,695
Polyurethane roller with high surface resistance
Inventors:
Johnny Dale Massie, II, Angela Rachele Perruzza, Edward Wayne Weidert
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jul 29, 1998
Inventors
Johnny Dale Massie, II
Angela Rachele Perruzza
Edward Wayne Weidert
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.