Granted Patent
Utility
US 4,672,250 · App. 06/671,638
Drive motor bearing apparatus
Inventor:
John A. Seitz
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Nov 15, 1984
Inventor
John A. Seitz
Assignee (at issue)
A. O. Smith Corporation
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.