Mattress frame

Details Mattress frame Mattress frame

2007-06-12

2007-06-12

Spear, Robert M. (Department: 2913)

Design Patent

active

29240214

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

REFERENCES:
patent: 3538861 (1970-11-01), Jurasek
patent: 4377279 (1983-03-01), Schulz et al.
patent: 4654905 (1987-04-01), Miller
patent: 4813656 (1989-03-01), Ramsey
patent: 5052064 (1991-10-01), Hagemeister et al.
patent: 5361434 (1994-11-01), Hagemeister et al.
patent: 6651276 (2003-11-01), McCraw et al.

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