Granted Patent
Utility
US 5,179,214 · App. 07/763,729
Process for manufacturing alkylene carbonates
Inventors:
Edward T. Marquis, John R. Sanderson
Patented Case
View Patent ↗
Granted: Jan 12, 1993
Filed: Sep 23, 1991
Inventors
Edward T. Marquis
John R. Sanderson
Assignee (at issue)
Texaco Chemical 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.