Granted Patent
Utility
US 4,529,464 · App. 06/312,664
Process for manufacturing a food container by extrusion and vacuum forming
Inventor:
Michael D. Jones
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Oct 19, 1981
Inventor
Michael D. Jones
Assignee (at issue)
Champion International Corporation Limited
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.