Granted Patent
Utility
US 4,248,694 · App. 06/039,912
Process for treating a sour petroleum distillate
Inventors:
David H. J. Carlson, Peter Urban
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: May 17, 1979
Inventors
David H. J. Carlson
Peter Urban
Assignee (at issue)
UOP LLC
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.