Receiver sheet
CA 2044937 A1 · Owner: Francis, John · Inventors: Francis, John; Hirst, Paul Ronald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
H35802, Receiver Sheet, A thermal transfer printing receiver sheet for use in association with a compatible donor sheet. The receiver sheet comprises in order (i) a supporting substrate comprising a layer of a synthetic polymer having a deformation index, at a temperature of 200°C and under a pressure of 2 megaPascals, of at least 4.5% (ii) a polymeric, intermediate layer having a Transmission Optical Density/film thickness (in mm) ratio of from 7.5 to 17.5, and (iii) a dye-receptive receiving layer to receive a dye thermally transferred from the donor sheet.
Read the whole patent
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 June 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2013.
- 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.