Granted Patent
Utility
US 5,213,128 · App. 07/880,516
Pressure/temperature-activated pressure relief valve
Inventor:
Michael R. Baird
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: May 8, 1992
Inventor
Michael R. Baird
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.