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:
Mar. 13, 2001
Filed:
Feb. 23, 1999
Applicant:
Inventors:
Michael R. Sullivan, Attleboro, MA (US);
John Raymond Sullivan, Saugus, MA (US);
Paul Francis Sullivan, Saugus, MA (US);
Robert Joseph Sullivan, Peabody, MA (US);
Thomas Daniel Fisher, Lynnfield, MA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F23D 3/16 ; C11C 5/00 ;
U.S. Cl.
CPC ...
F23D 3/16 ; C11C 5/00 ;
Abstract
A candle capable of changing color when lighted is disclosed. More particularly, the candle incorporates thermochromic dyes that are a first color at room temperature and a second color upon being raised to an activation temperature. The color change is preferably reversible so that upon cooling, the portions of the candle that underwent a color change return to their original color.