Granted Patent
Utility
US 6,637,213 · App. 10/131,578
Cooling of extruded and compression molded materials
Inventors:
Herbert Hutchison, Jeffrey R. Brandt
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Apr 24, 2002
Inventors
Herbert Hutchison
Jeffrey R. Brandt
Assignee (at issue)
Crane Plastics Company LLC
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.