Granted Patent
Utility
US 4,490,477 · App. 06/571,262
Catalyst and reverse disproportionation process
Inventor:
Charles F. Hobbs
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Jan 16, 1984
Inventor
Charles F. Hobbs
Assignee (at issue)
Monsanto Company
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.