Granted Patent
Utility
US 5,887,553 · App. 08/971,364
Device for electromagnetic actuation of a gas exchange valve
Inventors:
Rainer Ballmann, Christian Enderle, Paul Wurster
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Nov 17, 1997
Inventors
Rainer Ballmann
Christian Enderle
Paul Wurster
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.