Granted Patent
Utility
US 6,818,311 · App. 10/304,345
Plastic film
Inventor:
Walter Guenter
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Nov 26, 2002
Inventor
Walter Guenter
Assignee (at issue)
4P Folie Forchheim GmbH
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.