Granted Patent
Utility
US 4,512,472 · App. 06/542,712
Suction tube package
Inventor:
Erik Jarund
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Oct 17, 1983
Inventor
Erik Jarund
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.