Granted Patent
Utility
US 5,111,977 · App. 07/573,629
Sealable and dispensing pouring spout
Inventors:
Paul R. Maguire, John M. Lown
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Aug 24, 1990
Inventors
Paul R. Maguire
John M. Lown
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.