Granted Patent
Utility
US 5,690,479 · App. 08/564,346
Multi-stage regulator for variable displacement pumps
Inventors:
Uwe Lehmann, Bodo Stich, Maik Wilhelm
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Apr 23, 1996
Inventors
Uwe Lehmann
Bodo Stich
Maik Wilhelm
Assignee (at issue)
MERCEDES-BENZ GROUP 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.