(2-fluoro-5,6,11,12-tetraselenotetracene).sub.2 chloride, process for its preparation and its use
CA 1255686 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Mayer, Carl W.; Hilti, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2-Fluoro-5,6,11,12-tetraselenotetracene)2 chloride process, for its preparaton and its use. Abstract The novel complex of the formula I, (I) is an organic material with a high electrical conductivity and with a metallic phase transition at about 125°K under normal pressure, at which the conductivity increases suddenly. The complex can be used for example, as an organic electrical, conductor.
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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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 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.
Timeline
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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.