Patent Yard Sign in
Expired Canadian patentCanada

Targeted lipid-drug formulations for delivery of drugs to myeloid and lymphoid immune cells

CA 2539256 C · Owner: Marquitan, Guido · Inventors: Sullivan, Sean M.; Gieseler, Robert K.; Marquitan, Guido

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A method of preferentially delivering an active agent to an immune cell such , as a myeloid progenitor cell, a dendritic cell a monocyte, a macrophage or a , T-lymphocyte or other cell type restricted to a functional organ system or an anatomic entity, of a mammalian subject by administering a lipid-drug complex to the subject. The lipid-drug complex is comprised of an active agent such , as a drug, and an outer surface with a targeting ligand that binds a marker on the surface of the immune cell or other cell type that is infected with or susceptible to infection with an infectious agent. The other cell type that is infected with or suspectible to infection with an infectious agent …

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 September 17, 2004 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 2004
GrantedApril 24, 2012
Term endedSeptember 17, 2024
Patent numberCA 2539256 C
Classification (IPC)A61K9/12 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 17, 2004Patent grantedApril 24, 2012Term endedSep 17, 2024

Sources & verification

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