Granted Patent
Utility
US 4,292,196 · App. 06/101,949
Catalyst recovery
Inventors:
Edwin H. Homeier, Alan R. Dodds, Tamotsu Imai
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Dec 10, 1979
Inventors
Edwin H. Homeier
Alan R. Dodds
Tamotsu Imai
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.