Expired Canadian patentCanada
Sheet material for thermal transfer imaging
CA 2084239 C · Owner: Schild, Howard G. · Inventors: Schild, Howard G.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sheet materials for use in thermal transfer imaging systems comprising a donor sheet and a receiving sheet are provided wherein the donor sheet and the receiving sheet do not stick to each other during thermal processing.
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 December 1, 1992 and granted June 17, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2014.
- 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 1, 1992
GrantedJune 17, 1997
Term endedDecember 1, 2012
Patent numberCA 2084239 C
Classification (IPC)B41M5/52 +2 more
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.