Granted Patent
Utility
US 6,645,117 · App. 10/174,037
Transmission mechanisms with three planetary gear sets and one fixed interconnection
Inventors:
Patrick B. Usoro, Madhusudan Raghavan, Norman K. Bucknor
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Jun 18, 2002
Inventors
Patrick B. Usoro
Madhusudan Raghavan
Norman K. Bucknor
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.