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:
Jun. 06, 2023
Filed:
Aug. 21, 2019
Lg Electronics Inc., Seoul, KR;
Misun Song, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
An electric heater includes a substrate; and a plane heating element disposed on one surface of the substrate. The plane heating element includes a pattern portion including a start point and an end point, which are located at an outermost side of the pattern portion, the pattern portion including a plurality of tracks having an arc shape, which are spaced apart from each other and are formed to have a length increasing from an innermost side to the outermost side of the pattern portion, and a plurality of bridges connecting the plurality of tracks in series. The plurality of bridges are formed on both sides of the pattern portion with respect to a reference line passing through a center of the pattern portion, and an innermost gap between the pair of bridges located at the innermost side of the pattern portion is narrower than an outermost gap between a pair of bridges located at the outermost side of the pattern portion.