Granted Patent
Utility
US 4,367,360 · App. 06/303,543
Method for product isolation and catalyst recovery in aluminum chloride catalyzed isomerization of sym-octahydrophenanthrene to sym-octahydroanthracene
Inventor:
William T. Gormley
Patented Case
View Patent ↗
Granted: Jan 4, 1983
Filed: Sep 18, 1981
Inventor
William T. Gormley
Assignee (at issue)
KOPPERS, 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.