Resistance heater

US8993939B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8993939-B2
Application numberUS-201213424947-A
CountryUS
Kind codeB2
Filing dateMar 20, 2012
Priority dateJan 18, 2008
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A resistance heater is shown and described. The resistance heater may include a body. The body may include at least one heating surface, the heating surface being generally smooth and generally flat and a recess formed in the body, at least a portion of the body having a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape, and where the cross-sectional shape extends along at least a portion of the body.

First claim

Opening claim text (preview).

What is claimed is: 1. A resistance heater comprising: a body comprising: at least one heating surface defined by the body, the heating surface being generally smooth and generally flat; a recess formed in at least a portion of the body, wherein the portion has a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape; and wherein the cross-sectional shape extends along at least a portion of the length of the bo…

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Frequently asked questions

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What does patent US8993939B2 cover?
A resistance heater is shown and described. The resistance heater may include a body. The body may include at least one heating surface, the heating surface being generally smooth and generally flat and a recess formed in the body, at least a portion of the body having a cross-sectional shape selected from the group consisting of: generally U shape, generally I-shape, and generally H-shape, and…
Who is the assignee on this patent?
Morikawa Yuji, Matsui Yoshihiko, Otaka Akinobu, and 4 more
What technology area does this patent fall under?
Primary CPC classification H05B3/143. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).