Granted Patent
Utility
US 6,387,001 · App. 09/489,260
Rollerless chain having sprocket-engaging pins
Inventor:
George L. Markley
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Jan 21, 2000
Inventor
George L. Markley
Assignee (at issue)
BorgWarner 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.