Granted Patent
Utility
US 4,595,116 · App. 06/708,823
Opening arrangement for packing containers and a method for the manufacture of the same
Inventor:
Lars Carlsson
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Mar 6, 1985
Inventor
Lars Carlsson
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.