Granted Patent
Utility
US 5,000,360 · App. 07/413,185
Pouring spout which can be selectively opened and closed
Inventors:
John M. Lown, Paul R. Maguire
Patented Case
View Patent ↗
Granted: Mar 19, 1991
Filed: Sep 27, 1989
Inventors
John M. Lown
Paul R. Maguire
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.