Granted Patent
Utility
US 6,375,587 · App. 09/440,022
Timing chain having multiple blade tensioners contacting the same section of chain
Inventor:
Mark M. Wigsten
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Nov 12, 1999
Inventor
Mark M. Wigsten
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.