Use of fluorescent benzothiazole derivatives
CA 1341279 C · Owner: Marvin, William · Inventors: Marvin, William; Klem, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound represented by:, wherein:, (a) at least one of the carbons of any of positions 4 5, 6 or 7 is linked to a chemical moiety containing an anion group which is attached to the benzene ring; (b) the carbon at position 2 is linked to a chemical moiety X, comprised of at least 2 atoms;, (c) a nitrogen atom is located at position 3; (d) a sulfur atom is located at position 1; and (e) a chemical moiety attached to said anion group of subpart (a) which inhibits fluorescence; wherein upon removal of said chemical moiety of subpart (e) the, resulting compound is fluorescent. These compounds are useful in fluorescent substrates and in biological assays.
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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 July 31, 2001. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 31, 2018.
- 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.