Granted Patent
Utility
US 6,045,470 · App. 09/135,280
Front derailleur with chainline controlling idler cog
Inventors:
Weston M. Wilcox, Stephen J. Baumann
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Aug 17, 1998
Inventors
Weston M. Wilcox
Stephen J. Baumann
Assignee (at issue)
TREK BICYCLE 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.