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. 04, 1986
Filed:
Mar. 24, 1983
Applicant:
Inventors:
Yoshio Sakai, Ueda, JP;
Takeshi Yamada, Saku, JP;
Assignee:
Totoku Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219528 ; 219345 ; 219549 ; 338212 ;
Abstract
A heating sheet is provided in which protective covers are laminated to both surfaces of a heating element in which plastic sheets are respectively formed on the two surfaces of a metal foil heating circuit. The protective covers are adhered to the heater element such that indentations or recesses may be formed in those portions of the protective covers which do not correspond to the heating circuit.