Granted Patent
Utility
US 5,996,541 · App. 08/978,001
Valve control arrangement for an internal combustion engine having lift valves
Inventors:
Dieter Voigt, Horst-Gunter Hilderts
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Nov 25, 1997
Inventors
Dieter Voigt
Horst-Gunter Hilderts
Assignee (at issue)
VOLKSWAGEN AKTIENGESELLSCHAFT
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.