Granted Patent
Utility
US 4,266,389 · App. 05/964,623
Method and an arrangement for the advancing of a packing material web through a packing machine
Inventors:
Bjorn H. Linde, Wilhelm Reil
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Nov 29, 1978
Inventors
Bjorn H. Linde
Wilhelm Reil
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.