Color thermal transfer recording system and ribbon
CA 1279524 C · Owner: Erlichman, Irving · Inventors: Erlichman, Irving
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
7104, Title: COLOR THERMAL TRANSFER RECORDING SYSTEM AND RIBBON, ABSTRACT OF THE DISCLOSURE A closed loop thermal transfer recording system and color transfer ribbon having a plurality of different color ink stripes thereon are provided for recording a color tonal image on a recording sheet. Precise control over the size of dots formed by ink transfer is achieved by monitoring the density of a thermally sensitive indicator layer on the back side of the ribbon which provides, for each different ink color indicator marks, that are proportional to recorded pixel density and, feeding this information back to a control system which compares monitored density with desired density and regulates …
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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 January 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.