Granted Patent
Utility
US 4,621,069 · App. 06/538,316
Continuous process for catalyst regeneration by staged burnoff of carbon and sulfur compounds
Inventor:
Partha S. Ganguli
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Oct 3, 1983
Inventor
Partha S. Ganguli
Assignee (at issue)
HRI
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.