Granted Patent
Utility
US 4,603,490 · App. 06/615,819
Arrangement for the treatment of a moving material web
Inventors:
Anders Hilmersson, Helge Andersson
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: May 31, 1984
Inventors
Anders Hilmersson
Helge 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.