Granted Patent
Utility
US 4,617,779 · App. 06/530,604
Method and an arrangement for the manufacture of packing containers
Inventors:
Jan Nygren, Anders Hilmersson
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Sep 9, 1983
Inventors
Jan Nygren
Anders Hilmersson
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.