Granted Patent
Utility
US 5,162,022 · App. 07/759,906
Multiple sprocket assembly for bicycle
Inventor:
Jun Kobayashi
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Sep 13, 1991
Inventor
Jun Kobayashi
Assignee (at issue)
Maeda Industries, Ltd
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.