Granted Patent
Utility
US 4,324,936 · App. 06/220,498
Butane isomerization process
Inventor:
Michael Z. Mikulicz
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Dec 29, 1980
Inventor
Michael Z. Mikulicz
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.