Granted Patent
Utility
US 5,447,628 · App. 08/151,642
Reconstituting lubricating oil
Inventors:
Charles W. Harrison, Arthur G. Gorneau, Robert M. Steinberg, Bruce R. Bond
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Nov 15, 1993
Inventors
Charles W. Harrison
Arthur G. Gorneau
Robert M. Steinberg
Bruce R. Bond
Assignee (at issue)
Texaco 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.