Granted Patent
Utility
US 4,684,044 · App. 06/876,647
Viscous product dispenser having externally located, dispensed product shearing outlet valve provided with lost-motion action
Inventor:
Donald D. Foster
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Jun 17, 1986
Inventor
Donald D. Foster
Assignee (at issue)
Realex Corporation
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.