White laminated polyester film and thermal transfer recording receiving sheet using the same
CA 2414925 A1 · Owner: Ohwatari, Hisashi · Inventors: Kawazu, Yukio; Takahashi, Kozo; Ohwatari, Hisashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A white laminate polyester film where a white laminate polyester layer (B) containing fine bubbles is laminated, to the opposite sides thereof with a , white laminate polyester layer (A) containing inorganic fine particles. The white laminate polyester film where a constant relation is present between the longitudinal and lateral modulus of elasticity in tension and the specific gravity exhibits excellent whiteness, printability and crease resistance. A receiving sheet for thermal transfer recording employing such a white laminate polyester film as a basic material causes no sheet feed trouble at the time of print recording and provides a clear print image. The inventive white …
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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
- Filed April 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2024.
- 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.