Granted Patent
Utility
US 6,827,784 · App. 10/748,908
Corrugating method and means
Inventor:
Steven Kern
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Dec 30, 2003
Inventor
Steven Kern
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.