Granted Patent
Utility
US 4,283,587 · App. 06/160,053
Adsorptive separation of aromatic isomers
Inventors:
Donald H. Rosback, by Janice M. Gillespie, executrix
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Jun 16, 1980
Inventors
Donald H. Rosback
by Janice M. Gillespie, executrix
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.