Granted Patent
Utility
US 4,544,093 · App. 06/536,271
Edge-bonding of sheet material
Inventors:
Sven O. S. Stark, Lars Andersson
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Sep 27, 1983
Inventors
Sven O. S. Stark
Lars Andersson
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.