Granted Patent
Utility
US 4,935,570 · App. 07/212,019
Olefin oligomer synlube process
Inventors:
Marshall B. Nelson, Matthew J. Lynch, Thomas J. DiLeo
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Jun 27, 1988
Inventors
Marshall B. Nelson
Matthew J. Lynch
Thomas J. DiLeo
Assignee (at issue)
Ethyl 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.