Granted Patent
Utility
US 4,409,248 · App. 06/291,671
Heat-gelling and foam-stabilizing enzymatically modified vegetable isolates
Inventors:
William F. Lehnhardt, Frank T. Orthoefer
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Aug 10, 1981
Inventors
William F. Lehnhardt
Frank T. Orthoefer
Assignee (at issue)
A.E. Staley Manufacturing 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.