Mattress

Details Mattress Mattress

2007-05-22

2007-05-22

Spear, Robert M. (Department: 2913)

Design Patent

active

29237893

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

REFERENCES:
patent: 2940087 (1960-06-01), Kiefer
patent: 3139631 (1964-07-01), Kiefer
patent: 3143803 (1964-08-01), Lunn
patent: 4484781 (1984-11-01), Phelps
patent: 5815862 (1998-10-01), Rygiel
patent: 6334442 (2002-01-01), Altamura
patent: D487553 (2004-03-01), Morikawa
patent: 6823545 (2004-11-01), Davis
patent: D502350 (2005-03-01), O'Reagan
patent: D515709 (2006-02-01), Charon
patent: D521301 (2006-05-01), Dickson
patent: 2003/0038523 (2003-02-01), Sands

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