Granted Patent
Utility
US 5,850,846 · App. 08/798,621
Handle assembly for single-control valve
Inventors:
Fred Hannemann, Roland Weiss
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Feb 11, 1997
Inventors
Fred Hannemann
Roland Weiss
Assignee (at issue)
Friedrich Grohe AG
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.