Granted Patent
Utility
US 5,152,272 · App. 07/721,244
Cylinder head with an evaporation element in an air-intake channel
Inventor:
Dieter Scherenberg
Patented Case
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Granted: Oct 6, 1992
Filed: Jun 26, 1991
Inventor
Dieter Scherenberg
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.