Granted Patent
Utility
US 5,227,083 · App. 07/842,688
Polypropylene oxide dialkylsarcosinates for use as rust and haze inhibiting lubricating oil additive
Inventors:
Joseph M. Russo, Thomas F. DeRosa, Rodney L. Sung, Benjamin J. Kaufman
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Feb 27, 1992
Inventors
Joseph M. Russo
Thomas F. DeRosa
Rodney L. Sung
Benjamin J. Kaufman
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.