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:
Apr. 27, 1993
Filed:
Jan. 23, 1992
Applicant:
Inventor:
Jack H Smuckler, Marblehead, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219219 ; 219553 ; 219543 ; 219505 ; 219548 ;
Abstract
A positive temperature coefficient coating or layer is produced by applying to a substrate a composition containing a dispersion of conductive particles in a solution of a solvate or solvatable crystalline organic polymer. The coating or layer so formed can be incorporated into temperature self-regulating heating devices.