Granted Patent
Utility
US 4,327,763 · App. 06/210,518
Dual control input flow control valve
Inventor:
Tadeusz Budzich
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Nov 28, 1980
Inventor
Tadeusz Budzich
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.