Granted Patent
Utility
US 6,777,053 · App. 09/831,321
Method for producing a multilayer coextrudate and a coextrudate produced according thereto
Inventor:
Walter Gunter
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: May 7, 2001
Inventor
Walter Gunter
Assignee (at issue)
4P Folie Forchheim Zweigniederlassung der Van Leer Deutschland GmbH & Co. KG
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.