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.:
Date of Patent:
Feb. 05, 1991
Filed:
Jun. 26, 1989
Applicant:
Inventor:
Tsan L Chen, Tainan City, TW;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A63H / ;
U.S. Cl.
CPC ...
446124 ; 52284 ; 52594 ;
Abstract
A combining structure for toy blocks, forming a cross-shaped tenon on the top surface of a single unit block and mortises in the bottom surface of the single unit block, the unit blocks able to be combined together one by one inserting the tenon of a block in the mortises of another block.