Granted Patent
Utility
US 4,609,007 · App. 06/546,202
Mixing valve for connection to hot and cold water supply lines for feeding a variably proportioned mixture of hot and cold water to a shower head or the like
Inventor:
John Uhl
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Oct 27, 1983
Inventor
John Uhl
Assignee (at issue)
Sterling Faucet Company
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.