Granted Patent
Utility
US 6,289,921 · App. 09/446,840
Hydraulic valve, especially for controlling a camshaft movement in a motor vehicle
Inventors:
Rolf Neuhaus, Jurgen Rettinger, Robert Schloder
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Apr 24, 2000
Inventors
Rolf Neuhaus
Jurgen Rettinger
Robert Schloder
Assignee (at issue)
Hydraulik-Ring GmbH
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.