Granted Patent
Utility
US 4,618,078 · App. 06/643,070
Vented nestable pouring spout
Inventors:
Martin Hamman, Gary M. Baughman
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Aug 22, 1984
Inventors
Martin Hamman
Gary M. Baughman
Assignee (at issue)
RIEKE LLC
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.