Granted Patent
Utility
US 6,672,987 · App. 10/174,396
Multi-speed transmissions with a stationary planetary member
Inventors:
Madhusudan Raghavan, Norman K. Bucknor, Patrick B. Usoro
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jun 18, 2002
Inventors
Madhusudan Raghavan
Norman K. Bucknor
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.