Pretreatment reagents and methods using the same
CA 2230284 A1 · Owner: Syva Company · Inventors: Monger, Daniel J.; Jeong, Henry; Pfeiffer, Matthias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions and kits are disclosed for pretreating samples that are to be analyzed for the presence and/or amount of an associated analyte. The composition comprises a lower alkyl alcohol in an amount of about 30 % to about 40 % by volume, a glycol in an amount of about 20 % to about 40 % by volume, and an aqueous component comprising about 20 mM to about 30 mM copper salt. Additionally, the aqueous component can comprise about 0.5 mM to about 20 mM of a buffer, and about 0.005 % to about 0.2 % by weight of a non-ionic detergent and has a pH of about 2.0 to about 4.6. The kits further include one or more reagents for conducting an assay for the associated analyte. Also disclosed …
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 July 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2019.
- 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.