Granted Patent
Utility
US 4,325,813 · App. 06/173,532
Process for production of high octane gasoline from catalytic cracking unit
Inventors:
Stanley M. Brown, William J. Reagan, Gerald M. Woltermann
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Jul 30, 1980
Inventors
Stanley M. Brown
William J. Reagan
Gerald M. Woltermann
Assignee (at issue)
Engelhard Minerals & Chemicals 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.