Granted Patent
Utility
US 4,610,272 · App. 06/662,215
Actuating device for a mixing valve
Inventors:
Adolf Gottwald, Wilfried Koster
Patented Case
View Patent ↗
Granted: Sep 9, 1986
Filed: Oct 18, 1984
Inventors
Adolf Gottwald
Wilfried Koster
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.