Granted Patent
Utility
US 4,950,822 · App. 07/212,018
Olefin oligomer synlube process
Inventors:
Thomas J. DiLeo, Marshall B. Nelson, Matthew J. Lynch
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Jun 27, 1988
Inventors
Thomas J. DiLeo
Marshall B. Nelson
Matthew J. Lynch
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.