Granted Patent
Utility
US 4,552,259 · App. 06/625,333
Resin-reinforced, nodular plated wet friction materials
Inventor:
Clarence E. Albertson
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Jun 27, 1984
Inventor
Clarence E. Albertson
Assignee (at issue)
BorgWarner 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.