The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8122536 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 28, 2012

Filed:

Feb. 28, 2007
Applicants:

Zhu Peixin, Fujian, CN;

Lee Pil Yul, Seoul, KR;

Inventors:

Zhu Peixin, Fujian, CN;

Lee Pil Yul, Seoul, KR;

Assignee:

North Pole US LLC, Washington, MO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C 19/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A frame including a plurality of connector assemblies and a cross-support unit coupled between the plurality of connector assemblies. The cross-support unit is movable between a folded configuration and an expanded configuration. The cross-support unit defines a substantially planar support structure in the expanded configuration.


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