Step stool

Details Step stool Step stool

2009-08-07

2009-12-29

Snapp, Sandra (Department: 2915)

Design Patent

active

D0606768

CLAIM:
The ornamental design for a step stool, as shown and described.

REFERENCES:
patent: D184390 (1959-02-01), Cramer
patent: D213552 (1969-03-01), Hall
patent: 3559761 (1971-02-01), Wehner
patent: 3599750 (1971-08-01), Serwer
patent: D244494 (1977-05-01), Dottinger
patent: D262419 (1981-12-01), Cramer
patent: D330462 (1992-10-01), Szablak et al.
patent: D512537 (2005-12-01), Barnes et al.
patent: D524069 (2006-07-01), Lim
patent: D566408 (2008-04-01), Gonzalez
patent: D566978 (2008-04-01), Gonzalez
patent: D570125 (2008-06-01), Gonzalez
patent: D597751 (2009-08-01), Cohen

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