Granted Patent
Utility
US 6,146,021 · App. 09/409,215
Method for making a corrosion resistant bearing
Inventor:
Robert E. Ward
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Sep 30, 1999
Inventor
Robert E. Ward
Assignee (at issue)
Reliance Electric Technologies, LLC
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.