Granted Patent
Utility
US 5,750,620 · App. 08/855,070
Toughened polymeric compositions and methods of improving friction and wear properties of tribological systems
Inventors:
Mark C. Davies, Anne E. Bolvari
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: May 13, 1997
Inventors
Mark C. Davies
Anne E. Bolvari
Assignee (at issue)
Kawasaki Chemical Holding Co., 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.