Granted Patent
Utility
US 5,080,128 · App. 07/656,893
Angle body restrictor valve
Inventor:
Julian S. Taylor
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Feb 19, 1991
Inventor
Julian S. Taylor
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.