Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Reexamination Certificate
2007-10-16
2007-10-16
Hess, Bruce H. (Department: 1774)
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
C503S212000
Reexamination Certificate
active
11183609
ABSTRACT:
Non-photosensitive direct thermographic materials comprise a reducing agent that is a catechol borate compound. These compounds can reduce silver(I) ion to metallic silver to produce a dense black silver image under the short time and high temperature conditions that occur when using thermal print-heads during direct thermal printing.
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patent: 2004/0007693 (2004-01-01), Moulton
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Cowdery-Corvan Peter J.
Olson Leif P.
Sakizadeh Kumars
Whitcomb David R.
Carestream Health Inc.
Hess Bruce H.
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