Fluorescent label with polyether derived spacer
CA 2544451 C · Owner: Sugiyama, Masami · Inventors: Sugiyama, Masami
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a fluorescent label characterized by containing a hydrophilic polymer having an anionic group a polyether derivative, and a phosphor in which the phosphor is bound to the hydrophilic polymer via the polyether derivative and also relates to a fluorescently labeled recognition substance labeled with the fluorescent label and an immunoassay method using the recognition substance.
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 21, 2006 and granted February 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.