Granted Patent
Utility
US 5,130,394 · App. 07/650,964
Starch graft polymers
Inventors:
Charles C. Nguyen, Verne J. Martin, Edward P. Pauley
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Feb 5, 1991
Inventors
Charles C. Nguyen
Verne J. Martin
Edward P. Pauley
Assignee (at issue)
Penford Products Co.
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.