Granted Patent
Utility
US 6,221,108 · App. 09/071,564
Process for improving the friction rate of soft/compliant polyurethanes
Inventor:
Nigel G. Smith
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: May 1, 1998
Inventor
Nigel G. Smith
Assignee (at issue)
Howmedica 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.