Granted Patent
Utility
US 5,363,880 · App. 08/185,002
Hot/cold water mixing faucet with water temperature control
Inventor:
Yung-Li Hsieh
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jan 24, 1994
Inventor
Yung-Li Hsieh
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.