Granted Patent
Utility
US 5,149,799 · App. 07/471,141
Method and apparatus for cooking and spray-drying starch
Inventor:
Roger W. Rubens
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Jan 26, 1990
Inventor
Roger W. Rubens
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.