Granted Patent
Utility
US 4,595,523 · App. 06/510,011
Corrosion inhibition in engine fuel systems
Inventors:
J. Irvine Knepper, Robert J. Garrecht, George W. Dear
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Jul 1, 1983
Inventors
J. Irvine Knepper
Robert J. Garrecht
George W. Dear
Assignee (at issue)
Petrolite 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.