Granted Patent
Utility
US 4,557,405 · App. 06/485,348
Reversible closure-spout assembly
Inventor:
Ronald L. Foust
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Apr 15, 1983
Inventor
Ronald L. Foust
Assignee (at issue)
The Dyson-Kissner-Moran Corporation
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.