Granted Patent
Utility
US 4,709,799 · App. 06/729,204
Arrangement for orienting articles on a conveyor
Inventor:
Per Ljungberg
Patented Case
View Patent ↗
Granted: Dec 1, 1987
Filed: May 1, 1985
Inventor
Per Ljungberg
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.