Granted Patent
Utility
US 4,530,307 · App. 06/670,630
Teat cup inflation
Inventor:
Paul D. Thompson
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Nov 13, 1984
Inventor
Paul D. Thompson
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.