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:
Sep. 03, 2013
Filed:
Sep. 01, 2011
Applicant:
Igor Goldman, Montgomery Village, MD (US);
Inventor:
Igor Goldman, Montgomery Village, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ring puzzle has a plurality of rings having a through going slot through which the rings can be introduced into one another, and each of the ring being provided with a plurality of groups at least two circumferentially spaced protrusions and at least two axially spaced grooves, such that when one of the rings is introduced in another of the rings and turned relative to the latter and the protrusions of one of the rings are engaged in the grooves of another of the rings at least one of the groups two of the rings become firmly connected with one another.