Granted Patent
Utility
US 6,193,622 · App. 09/348,996
Automatic chain tensioner
Inventors:
Brian Mark Cressman, Kevin Donald Buschert
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Sep 1, 1998
Inventors
Brian Mark Cressman
Kevin Donald Buschert
Assignee (at issue)
Ontario Drive & Gear Limited
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.