Granted Patent
Utility
US 6,378,396 · App. 09/516,918
Welded crankshaft
Inventors:
Rudolf Reinhardt, Hans Zechmann
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Mar 1, 2000
Inventors
Rudolf Reinhardt
Hans Zechmann
Assignee (at issue)
Daimlerchrysler 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.