Granted Patent
Utility
US 4,625,902 · App. 06/821,510
Method and arrangement for the feeding of a material web
Inventor:
Alf Billberg
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Jan 22, 1986
Inventor
Alf Billberg
Assignee (at issue)
Tetra Pak International AB
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.