Granted Patent
Utility
US 5,416,181 · App. 07/810,646
Reinforced films made from water soluble polymers
Inventors:
Charles C. Nguyen, Verne J. Martin, Edward P. Pauley, Henry L. Buccigross, Stephen Rudolph
Patented Case
View Patent ↗
Granted: May 16, 1995
Filed: Dec 19, 1991
Inventors
Charles C. Nguyen
Verne J. Martin
Edward P. Pauley
Henry L. Buccigross
Stephen Rudolph
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.