Granted Patent
Utility
US 6,578,368 · App. 09/766,054
Cryogenic cooling of extruded and compression molded materials
Inventors:
Jeffrey R. Brandt, Matthew F. Kollar, Herbert Hutchison
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jan 19, 2001
Inventors
Jeffrey R. Brandt
Matthew F. Kollar
Herbert Hutchison
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.