Granted Patent
Utility
US 4,979,538 · App. 07/485,225
Wall-mount mixing faucet
Inventors:
Manfred Krippendorf, Peter Eisbach
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Feb 26, 1990
Inventors
Manfred Krippendorf
Peter Eisbach
Assignee (at issue)
Friedrich Grohe Armaturenfabrik GmbH & Co.
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.