Cdnas coding for the subunit of the high-affinity receptor for immunoglobulin e
CA 2000878 C · Owner: The United States Of America, Represented By The Secretary, U.S. Departm Ent Of Commerce · Inventors: Metzger, Henry; Kinet, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is the isolation and sequencing of the cDNA coding for the ~ subunit of the high-affinity receptor for immunoglobulin E (IgE) on mast cells and basophils. Also disclosed is the expression of the receptor when the cDNA for its .alpha. .beta. and ~ subunits are simultaneously contransfected. This success in expression of IgE binding permits detailed analysis of the IgE-receptor interaction and thus enables the development of therapeutically effective inhibitors.
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 October 17, 1989 and granted June 29, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.