Granted Patent
Utility
US 4,420,646 · App. 06/372,491
Feedstocks for the production of synthetic lubricants
Inventors:
Jerome W. Darden, Lewis W. Watts, Jr., Edward T. Marquis
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Apr 28, 1982
Inventors
Jerome W. Darden
Lewis W. Watts, Jr.
Edward T. Marquis
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.