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Expired Canadian patentCanada

Polymeric mixture for dye-receiving element used in thermal dye transfer

CA 1258177 A · Owner: Eastman Kodak Company · Inventors: Harrison, Daniel J.; Bowman, Wayne A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure, A dye-receiving element for thermal dye transfer comprises a support having thereon a mixture of poly(caprolactone) or a liners aliphatic polyester with one or both of poly(styrene-co-acrylonitrile) and a bisphenol A polycarbonate. Dyes which are transferred to this receiving element have improved light stability.

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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 August 8, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 8, 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.
FiledDecember 4, 1986
GrantedAugust 8, 1989
Term endedAugust 8, 2006
Patent numberCA 1258177 A
Classification (IPC)B41M5/26 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedDec 4, 1986Patent grantedAug 8, 1989Term endedAug 8, 2006

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.