Granted Patent
Utility
US 4,378,029 · App. 06/326,233
Single control faucet
Inventor:
Richard G. Parkison
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Nov 2, 1981
Inventor
Richard G. Parkison
Assignee (at issue)
American Standard Inc.
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.