Yellow dye-donor element used in thermal dye transfer
CA 1254743 A · Owner: Eastman Kodak Company · Inventors: Weaver, Max A.; Moore, William H.; Lum, Kin K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
i-, YELLOW DYE-DONOR ELEMENT USED, IN THERMAL DYE TRANSFER Abstract of the Disclosure, A yellow dye-donor element for thermal dye transfer comprises a support having thereon a yellow dye dispersed in a polymeric binder, the yellow dye having the formula:, wherein R is a substituted or unsubstituted alkyl group of from 1 to about 10 carbon atoms; a cycloalkyl group of from about 5 to about 7 carbon atoms; or represents the atoms which when taken together with Z forms a 5- or 6-membered ring;, R1 is an alkylene or substituted alkylene group;, X is -OJO-, -OJ-, -JO-, -OJNR3- -NR3J-, -NR3JNR3, -JNR3- or -NR3JO-;, J is CO or SO2; R3 is hydrogen; a substituted or, unsubstituted alkyl group of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 30, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.