Granted Patent
Utility
US 4,614,449 · App. 06/643,997
Water-dispensing cleaning brush with deflecting means
Inventors:
Harald Korfgen, Werner Geipel, Bruno Heimann
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Aug 23, 1984
Inventors
Harald Korfgen
Werner Geipel
Bruno Heimann
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.