Granted Patent
Utility
US 5,680,795 · App. 08/498,358
Mechanical drive assembly incorporating counter-spring biassed radially-adjustable rollers
Inventor:
John D. Parsons
Patented Case
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Granted: Oct 28, 1997
Filed: Jul 5, 1995
Inventor
John D. Parsons
Assignee (at issue)
Norco, 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.