Granted Patent
Utility
US 5,370,270 · App. 08/079,070
Non-spill bottle cap used with water dispensers
Inventors:
Brian M. Adams, Daniel Luch
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Jun 16, 1993
Inventors
Brian M. Adams
Daniel Luch
Assignee (at issue)
Portola Packaging, Inc.
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.