Granted Patent
Utility
US 5,706,848 · App. 08/588,469
Heat exchanger pressure shutoff valve
Inventor:
Julian S. Taylor
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Jan 18, 1996
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.