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Canadian application, no grantCanada

Lock and key micelles

CA 2263982 A1 · Owner: University Of South Florida · Inventors: Moorefield, Charles N.; Newkome, George R.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A lock unimolecular micelle includes at least one engineered acceptor specifically binding a ligand (or specifically a "key" unimolecular micelle) thereto. A key unimolecular micelle comprises a core molecule and a plurality of branches extending therefrom, at least one of the branches including a shank portion extending therefrom having a terminal moiety at an end thereof for binding to a complimentary acceptor of a lock unimolecular micelle. Together, the lock and key micelles form a unit either irreversibly or , reversibly bound wherein the lock micelle is a soluble receptor engineered to specifically bind to the specifically engineered key micelle.

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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 August 26, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 26, 1997
GrantedNo grant recorded
Term endedAugust 26, 2017
Patent numberCA 2263982 A1
Classification (IPC)C07C233/83 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedAug 26, 1997Term endedAug 26, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.