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 7604212 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 20, 2009

Filed:

Mar. 21, 2007
Applicant:

Ming-liang Tsai, Taipei, TW;

Inventor:

Ming-Liang Tsai, Taipei, TW;

Assignee:

Other;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47B 91/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A collapsible frame has a base mechanism. The base mechanism comprises a first connector and a second connector which are pivotally connected to the bottom of the collapsible frame. The first connector is pivotally connected with first reinforcement legs. The bottom of the first connector is formed with a first trough. The second connector and the first connector are overlapped and engaged with each other. The second connector is pivotally connected with a second reinforcement legs. The top of the second connector is formed with a second trough. The first and second reinforcement legs are pivotally connected to the bottom of the collapsible frame.


Find Patent Forward Citations

Tsai, Ming-Liang. (2009). Collapsible frame having a base mechanism (U.S. Patent No. 7604212). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7604212

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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