Granted Patent
Utility
US 4,640,152 · App. 06/734,545
Multi-speed planetary transmission
Inventors:
David C. Quick, Stephen J. McCormick, Gerardus M. Ballendux
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: May 16, 1985
Inventors
David C. Quick
Stephen J. McCormick
Gerardus M. Ballendux
Assignee (at issue)
Deutz-Allis Corporation
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.