Pair of bicycle chain rings

Details Pair of bicycle chain rings Pair of bicycle chain rings

2007-04-17

2007-04-17

Douglas, Alan P. (Department: 2911)

Transportation

Cycle or motorcycle

Element or attachment

Design Patent

active

29254870

CLAIM:
The ornamental design for a pair of bicycle chain rings, as shown and described.

REFERENCES:
patent: 4519791 (1985-05-01), Nagano
patent: 5066264 (1991-11-01), Romano
patent: 5078653 (1992-01-01), Nagano
patent: 5413534 (1995-05-01), Nagano
patent: 5437582 (1995-08-01), Romano
patent: 5609536 (1997-03-01), Hsu
patent: 5738603 (1998-04-01), Schmidt et al.
patent: 5782712 (1998-07-01), Campagnolo
patent: 5876296 (1999-03-01), Hsu et al.
patent: 5935034 (1999-08-01), Campagnolo
patent: 6340338 (2002-01-01), Kamada
patent: 6572500 (2003-06-01), Tetsuka
patent: 6666786 (2003-12-01), Yahata
patent: 6923741 (2005-08-01), Wei
http://www.raceface.com/components/chainrings/racerings.htm.
http://bike.shimano.com/publish/content/cycle/sac/us/en/technical_service/shimano_technology/front_shifting_technology.html.

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