Methods and compositions providing enhanced chemiluminescence from chemiluminescent compounds using dicationic surfactants
CA 2123753 C · Owner: Akhavan-Tafti, M. Hashem · Inventors: Akhavan-Tafti, M. Hashem; Arghavani, Zahra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dicationic surfactant for enhancing the chemiluminescence of chemiluminescent compounds particularly dioxetanes which are triggerable is described. The surfactant has the formula x-(R1)3A+CH2-Link-CH2A+(R2)3X-, wherein A is selected from the group consisting of phosphorus and nitrogen atoms separately or together wherein X is an anionic counterion and R1 and R2 are selected from the group consisting of unsubstituted and substituted alkyl and aralkyl groups containing 1 to 20 carbon atoms and R1 and R2 can be the same or different and wherein Link is a carbon chain group selected from the group consisting of dialkylenearyl aryl, alkylene, alkenylene and alkynylene groups containing 4 to 20 …
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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 May 17, 1994 and granted August 26, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.