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:
Dec. 20, 1977
Filed:
Oct. 07, 1976
Applicant:
Inventor:
Thomas A Snyder, Eugene, OR (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
272113 ; 46 / ;
Abstract
A changeable-configuration geometric device including four right tetrahedrons hinged together with an equilateral tetrahedron in such a manner that the various tetrahedrons may be swung relative to one another to form an infinite number of different overall configurations for the device. One configuration which is producible is that of an equilateral cube, in which configuration the equilateral tetrahedron forms the central core of the cube.