Toner for electrostatically charged image development
CA 2407323 A1 · Owner: Ticona Gmbh · Inventors: Nakamura, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toner for developing an electrostatically charged image which is , constituted with a microcapsule toner particle composed of a core and a shell the core comprising a colorant and a binder resin containing an olefin copolymer having a cyclic structure, said olefin copolymer having a glass transition temperature ranging from -20~C to less than 60~C and a number average molecular weight ranging from 100 to 20,000 and the shell comprising , a coating resin for the core and/or a shell comprising a resin for coating the core containing an olefin copolymer having a cyclic structure said olefin , copolymer having a glass transition temperature ranging from 60~C to 180~C and a number average …
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 April 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2022.
- 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.