Granted Patent
Utility
US 5,215,050 · App. 07/919,221
Method of producing a cylinder head of an internal combustion engine
Inventors:
Franz Ruckert, Jiri Vlach, Rudolf Reinhardt, Dieter Hahn
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Jul 27, 1992
Inventors
Franz Ruckert
Jiri Vlach
Rudolf Reinhardt
Dieter Hahn
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.