Granted Patent
Utility
US 4,989,633 · App. 07/485,380
Adjustable-length wall-mount faucet
Inventors:
Jurgen Humpert, Bruno Heimann, Jan R. Kostorz
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Feb 26, 1990
Inventors
Jurgen Humpert
Bruno Heimann
Jan R. Kostorz
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.