Granted Patent
Utility
US 5,809,950 · App. 08/866,513
Hydraulic valve control arrangement
Inventors:
Ulrich Letsche, Ralf Gapp
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: May 30, 1997
Inventors
Ulrich Letsche
Ralf Gapp
Assignee (at issue)
Daimler-Benz 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.