A method for generation of antibodies to cell surface molecules
CA 2125472 C · Owner: De Boer, Mark · Inventors: De Boer, Mark; Conroy, Leah B.
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 method of generating antibodies directed against cell surface antigens and it uses recom-binant insect cells as immunogens. The insect cells have been transfected with coding regions for a molecule containing a cell sur-face antigen and these antigens are expressed on the surface of the insect cells. Host animals are immunized with these transfect-ed insect cells to generate antibodies directed against the cell , surface antigen. Antibody-producing cells from the host animal are used to generate monoclonal antibody-producing hybridoma cells. Sera and hybridoma supernatants can be tested for the pres-ence of antibodies against the surface antigen …
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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 July 8, 1993 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2015.
- 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.