Chairs and seats – Headrest – Portable – with seat attacher
Reexamination Certificate
2007-08-23
2009-02-24
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Headrest
Portable, with seat attacher
C297S408000, C297S410000
Reexamination Certificate
active
07494188
ABSTRACT:
A headrest for an office chair includes a headrest body, two connecting blocks, a support frame and a hook. The support frame has two L-shaped hooks in an intermediate portion, and the headrest can be assembled with a backrest of an office chair by a hook and L-shaped hooks of the support frame to enable the headrest being assembled with any office chair easily. Moreover, the headrest body can be adjusted in its height and angle to be usable by users of different physical heights.
REFERENCES:
patent: 490541 (1893-01-01), Case
patent: 3292974 (1966-12-01), Gelbman
patent: 6857704 (2005-02-01), Stenzel et al.
patent: 7303232 (2007-12-01), Chen
patent: 2003/0141751 (2003-07-01), Stenzel et al.
patent: 2005/0088027 (2005-04-01), Yetukuri et al.
Chow Ming
Jr. Milton Nelson
Sinorica LLC
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