Reagents for the determination of drugs
CA 2011722 C · Owner: Salamone, Salvatore J. · Inventors: Salamone, Salvatore J.; Vitone, Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel reagents for the detection by immunoassay of drugs in body fluids, their preparation and use are disclosed. The reagents of the present invention correspond to the formula, P-A-Dn, where:, D is a drug derivative suitably selective for the determination of the presence of the target drug or drug metabolite, A is an activating linker-spacer group having an N-hydroxysuccinimide or isothiocyanate derived linking moiety, P is a poly(amino acid) or polymer capable of covalently bonding with A, and, n is less than 1.
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 8, 1990 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2012.
- 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.