Granted Patent
Utility
US 6,533,540 · App. 09/875,927
Double-seal/oil-reservoir system for a motor/pump assembly
Inventor:
Cleo D. Mathis
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Jun 8, 2001
Inventor
Cleo D. Mathis
Assignee (at issue)
Sta-Rite Industries 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.