Granted Patent
Utility
US 4,325,289 · App. 06/113,288
Load responsive fluid control valve
Inventor:
Tadeusz Budzich
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Jan 18, 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.