Adjustable support

Chairs and seats – Rest for knee – leg – or foot – Portable

Reexamination Certificate

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Details

C297S423410, C297S423450, C297S423430, C297S423440, C248S346060, C248S371000, C248S423000, C248S448000, C108S147110, C108S147210, C108S157100, C108S157130, C108S157160, C108S157170, C108S159000

Reexamination Certificate

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06846043

ABSTRACT:
Method and apparatus providing a rest member having a support surface and a stand for the rest member, with the rest member having a plural multiplicity of apertures therein to permit the adjustment in height thereof with respect to the stand, which can take the form of an expandable member associated with the rest member and being contractable as well as expandable inwardly and outwardly and accompanied by means for inhibiting the separation of the rest member from stand after the rest member has been positioned on the stand.

REFERENCES:
patent: 3132835 (1964-05-01), Drabert
patent: 3163468 (1964-12-01), Koch
patent: 3653715 (1972-04-01), Drabert et al.
patent: 4873966 (1989-10-01), Gitter
patent: 5201568 (1993-04-01), Christensen, Jr.
patent: 5294180 (1994-03-01), Grimm
patent: 5356203 (1994-10-01), Levasseur et al.
patent: 5419618 (1995-05-01), Hatcher
patent: 5577806 (1996-11-01), Ugalde
patent: 5584535 (1996-12-01), Jacobson et al.
patent: 5626393 (1997-05-01), Levasseur et al.
patent: 6454357 (2002-09-01), Foulger
patent: 6682147 (2004-01-01), Leoutsakos
patent: 3728717 (1989-03-01), None
patent: 4304531 (1994-08-01), None

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