Compositions, methods and kits for detection of an antigen on a cell and in a biological mixture
CA 2499355 C · Owner: The Trustees Of The University Of Pennsylvania · Inventors: Siegel, Donald L.
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 novel methods for detecting a member of a known binding pair in a sample, including a cell where one member of the pair , (termed the "receptor") is expressed by a bacteriophage which phage is then , used to detect the presence of the other member of the pair (termed the "ligand" or "target"). Rather than detecting the binding of the phage using antibody-based technology, the present invention relates to detecting the nucleic acid associated with the phage. In one aspect the invention relates , to identifying an antigen-bearing moiety (e.g. a red blood cell antigen) of interest present on a cell, e.g. a red blood cell using antibody-displaying , …
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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 September 18, 2003 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2025.
- 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.