Granted Patent
Utility
US 5,302,158 · App. 07/982,170
Lubricant pumping in tandem drive axles
Inventor:
Dale Kwasniewski
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Nov 24, 1992
Inventor
Dale Kwasniewski
Assignee (at issue)
Eaton 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.