Granted Patent
Utility
US 4,224,367 · App. 05/908,386
Multiple ply packaging material comprising outer plies sealed around an inner ply
Inventor:
William R. Scholle
Patented Case
View Patent ↗
Granted: Sep 23, 1980
Filed: May 22, 1978
Inventor
William R. Scholle
Assignee (at issue)
Scholle Corporation
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.