Granted Patent
Utility
US 6,039,001 · App. 09/081,151
Teatcup liner with desired mouthpiece chamber vacuum
Inventor:
Scott Sanford
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: May 19, 1998
Inventor
Scott Sanford
Assignee (at issue)
DEC International, 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.