Granted Patent
Utility
US 6,461,656 · App. 09/771,417
Starch phosphate ester for use as an expansion aid
Inventors:
Wolfgang Bindzus, Paul A. Altieri
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jan 26, 2001
Inventors
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.