Granted Patent
Utility
US 6,464,613 · App. 09/870,362
Power-shiftable compound planetary transmission
Inventors:
Marshall Kolb, Darrell L. Durham
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: May 30, 2001
Inventors
Marshall Kolb
Darrell L. Durham
Assignee (at issue)
Eskridge Engineering, Inc.
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.