Granted Patent
Utility
US 6,413,372 · App. 09/633,674
Starch polymer combinations used in papermaking
Inventors:
Walter Maliczyszyn, Wolfgang Bindzus, Paul A. Altieri
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Aug 7, 2000
Inventors
Walter Maliczyszyn
Wolfgang Bindzus
Paul A. Altieri
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.