Granted Patent
Utility
US 4,676,896 · App. 06/819,624
Faucet mounted purifier
Inventor:
William W. Norton
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Jan 17, 1986
Inventor
William W. Norton
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.