Granted Patent
Utility
US 6,832,673 · App. 10/629,995
Hydrodynamic coupling device, especially a hydrodynamic torque converter
Inventors:
Roland Baumann, Christoph Sasse, Thomas Bauer, Steffen Engel, Christoph Juretzka
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Jul 30, 2003
Inventors
Roland Baumann
Christoph Sasse
Thomas Bauer
Steffen Engel
Christoph Juretzka
Assignee (at issue)
ZF Sachs 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.