Birch pollen allergen p14 for diagnosis and therapy of allergic diseases
CA 2067182 A1 · Owner: Kraft, Dietrich · Inventors: Rumpold, Helmut; Pettenburger, Karin; Breitenbach, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides recombinant DNA molecules which code for polypeptides that exhibit the antigenicity of a P14 allergen of birch Betula verrucosa and other plants of the order Fagales and for polypeptides comprising at least one epitope thereof as, well as nucleic acids which under stringent conditions hybridize with such DNA sequences or are derivable from such sequences by degeneracy of the genetic code. A method is provided that permits purification of P14 allergens or cross-reactive allergens by means of binding to poly(L-proline). In addition methods are, described for making the proteins and polypeptides coded by these DNA molecules and their use in the diagnosis or therapy of …
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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 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2013.
- 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.