Granted Patent
Utility
US 4,895,578 · App. 07/241,879
Hydrocarbon fuel detergent
Inventors:
George R. Meyer, Walter R. Lyons, Jr.
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Sep 8, 1988
Inventors
George R. Meyer
Walter R. Lyons, Jr.
Assignee (at issue)
Nalco Chemical Company
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.