Granted Patent
Utility
US 5,756,556 · App. 08/746,958
Starch foam products with improved flexibility/compressibility and the method of preparation thereof
Inventors:
John J. Tsai, Christopher L. Kulp, Walter Maliczyszyn, Paul A. Altieri, David C. Rawlins
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Nov 18, 1996
Inventors
John J. Tsai
Christopher L. Kulp
Walter Maliczyszyn
Paul A. Altieri
David C. Rawlins
Assignee (at issue)
National Starch and Chemical Investment Holding Copporation
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.