Device for ligand receptor methods
CA 2037963 C · Owner: Biosite Incorporated · Inventors: Nowakowski, Mark Ronald; Anderson, Richard Ray; Valkirs, Gunars Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Devices for use in either competitive or noncompetitive ligand-receptor assays, having a microporous member in contact with a non-absorbent textured surface where, the surface texturing is such that a capillary network is formed when in contact with the microporous member. More particularly, these devices comprise:, a porous member having an upper and a lower surface said sample being applied to said upper surface; and a non-absorbent member having a textured surface with channels capable of forming a network of capillary channels when placed in communication beneath or around said porous member, said capillary network substantially parallel to the lower surface of said porous member; …
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 March 11, 1991 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 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.