Granted Patent
Utility
US 6,186,917 · App. 09/198,712
Variable speed transmission
Inventors:
Oswald Friedmann, Bernhard Walter
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Nov 24, 1998
Inventors
Oswald Friedmann
Bernhard Walter
Assignee (at issue)
LuK Getriebe-Systeme GmbH
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.