Granted Patent
Utility
US 6,408,239 · App. 09/180,803
Process for controlling a continuously variable transmission system (CVT)
Inventors:
Holger Bacher, Dirk Clausen
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Nov 16, 1998
Inventors
Holger Bacher
Dirk Clausen
Assignee (at issue)
ZF Friedrichshafen 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.