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. 25, 1992
Filed:
Jul. 10, 1991
Applicant:
Inventor:
Morgan Chang, Chang Hua City, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63F / ;
U.S. Cl.
CPC ...
2731 / ;
Abstract
A jigsaw puzzle including a base, a number of conductors disposed on the base and arranged in a line, a switch disposed between every two adjacent conductors, a number of jigsaw pieces can be disposed upon the switch, a sounding device connected between two of the conductors and sending out a sound when all of the switches are depressed by the jigsaw pieces and when all of the jigsaw pieces are correctly disposed in place.