Granted Patent
Utility
US 5,911,344 · App. 08/976,016
Rigid thermoplastic squeeze container having self-sealing dispensing valve
Inventor:
Ronald E. Kieras
Patented Case
View Patent ↗
Granted: Jun 15, 1999
Filed: Nov 21, 1997
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.