Granted Patent
Utility
US 5,746,356 · App. 08/758,902
Rotatable spout dispensing tube
Inventor:
Ronald E. Kieras
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Dec 2, 1996
Inventor
Ronald E. Kieras
Assignee (at issue)
Courtaulds Packaging
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.