发明名称 |
TEMPERATURE RESPONSIVE COMMUNICATION DEVICE |
摘要 |
The present invention comprises a device for revealing a message or image responsive to temperature changes of approximately 5° F. (3° C.). A thermochromic leuco dye is applied to a surface that is positioned for contact by an outside heating or cooling source. The thermochromic leuco dye reveals an intended message or image when the temperature is changed sufficiently.
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申请公布号 |
US2007161510(A1) |
申请公布日期 |
2007.07.12 |
申请号 |
US20070620212 |
申请日期 |
2007.01.05 |
申请人 |
SPITZER LARRY KURT;SPITZER JIMMY JOE |
发明人 |
SPITZER LARRY KURT;SPITZER JIMMY JOE |
分类号 |
B41M5/40 |
主分类号 |
B41M5/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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