Granted Patent
Utility
US 6,773,739 · App. 10/232,110
Method and apparatus for extrusion of food products including back pressure valve/diverter
Inventors:
Bobbie W. Hauck, Marc Wenger
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Aug 30, 2002
Inventors
Bobbie W. Hauck
Marc Wenger
Assignee (at issue)
Wenger Manufacturing Inc.
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.