Granted Patent
Utility
US 5,221,236 · App. 07/880,283
Belt tensioning device for belt driven bicycle
Inventors:
Matthew C. Raymer, David T. Mollendor
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: May 4, 1992
Inventors
Matthew C. Raymer
David T. Mollendor
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.