Granted Patent
Utility
US 4,712,583 · App. 06/867,824
Precision passive flat-top valve for medication infusion system
Inventors:
John P. Pelmulder, Lanny A. Gorton, Armen J. Guleserian, John Livingston
Patented Case
View Patent ↗
Granted: Dec 15, 1987
Filed: May 27, 1986
Inventors
John P. Pelmulder
Lanny A. Gorton
Armen J. Guleserian
John Livingston
Assignee (at issue)
Pacesetter Infusion, Ltd.
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.