Sound muffling sleep mask

Details Sound muffling sleep mask Sound muffling sleep mask

2000-08-14

2002-11-05

Barkai, Raphael (Department: 2913)

Photography and optical equipment

Ophthalmic article

Eyeglasses, eyewear, or frame therefor

Design Patent

active

D0465234

CLAIM:
The ornamental design for an sound muffling sleep mask, as shown.

REFERENCES:
patent: 945839 (1910-01-01), Brisbane
patent: 3541608 (1970-11-01), Otwell
patent: 3780379 (1973-12-01), Kampman
patent: 4502476 (1985-03-01), Welt
patent: D285624 (1986-09-01), Rosenbaum
patent: D302167 (1989-07-01), Sherman
patent: 5343561 (1994-09-01), Adamo
patent: 6088836 (2000-07-01), deCordova

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