Granted Patent
Utility
US 4,439,348 · App. 06/346,353
Catalyst system for furan resins
Inventor:
Denis W. Akerberg
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Feb 5, 1982
Inventor
Denis W. Akerberg
Assignee (at issue)
The Quaker Oats 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.