Granted Patent
Utility
US 6,030,128 · App. 09/037,493
Insulating arrangement for electrical machine shaft bearing
Inventor:
Joseph H. Pontzer
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Mar 10, 1998
Inventor
Joseph H. Pontzer
Assignee (at issue)
Reliance Electric Industrial Company
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.