Stair climbing wheel system

Details Stair climbing wheel system Stair climbing wheel system

2007-04-10

2007-04-10

Ramirez, Cynthia E. (Department: 2911)

Material or article handling equipment

Conveying, lifting, or transferring article

Design Patent

active

29244982

CLAIM:
The ornamental design for stair climbing wheel system, as shown and described.

REFERENCES:
patent: 2400824 (1946-05-01), Jackson
patent: 2706640 (1955-04-01), Marshall
patent: 3920255 (1975-11-01), Siddoway
patent: 4061199 (1977-12-01), Last
patent: 4264082 (1981-04-01), Fouchey, Jr.
patent: 4687213 (1987-08-01), Ridderstolpe
patent: D299953 (1989-02-01), King et al.
patent: 4919489 (1990-04-01), Kopsco
patent: D318358 (1991-07-01), Cowlin
patent: D340340 (1993-10-01), Allen
patent: D340341 (1993-10-01), Lawless et al.
patent: 5273296 (1993-12-01), Lepek
patent: D413420 (1999-08-01), Nimmo et al.
patent: 6029982 (2000-02-01), Kakehi et al.
patent: 6644675 (2003-11-01), Ellis et al.
patent: 6926287 (2005-08-01), Maher

Affiliated with

Also associated with

Rating

Stair climbing wheel system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stair climbing wheel system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stair climbing wheel system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3737199