Granted Patent
Utility
US 6,644,169 · App. 09/794,966
Control valve system for the hydraulic work system of a work vehicle
Inventors:
Horst Deininger, Eckehart Schulze
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Feb 27, 2001
Inventors
Horst Deininger
Eckehart Schulze
Assignee (at issue)
Linde 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.