Granted Patent
Utility
US 6,709,358 · App. 09/955,742
Family of multi-speed transmission mechanisms having three planetary gearsets and five torque-transmitting mechanisms
Inventors:
Madhusudan Raghavan, Chi-Kuan Kao, Patrick B. Usoro
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Sep 19, 2001
Inventors
Madhusudan Raghavan
Chi-Kuan Kao
Patrick B. Usoro
Assignee (at issue)
General Motors LLC
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.