Granted Patent
Utility
US 4,353,810 · App. 06/227,002
Minimizing iron in recovered oxidation catalyst material in DMT process
Inventor:
Jesse G. Wendle, Jr.
Patented Case
View Patent ↗
Granted: Oct 12, 1982
Filed: Jan 21, 1981
Inventor
Jesse G. Wendle, Jr.
Assignee (at issue)
Hercofina
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.