Method and kit for determination of herpes simplex viral antigen by direct binding to polymeric particles
CA 2026667 A1 · Owner: Sutton, Richard C. · Inventors: Green, Nancy F; Cummins, Thomas J.; Sutton, Richard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herpes simplex viral antigen can be readily determined by contacting a specimen containing Herpes simplex virus or Herpes simplex viral-infected cells with polymeric particles which have a surface area of from about 0.1 to about 600 m2/g. Within a few minutes of this contact, antigen which is bound to the particles is contacted with antibodies thereto so as to form an immunological complex on the particles. Bound complex is separated from uncomplexed materials, and the presence of the complex is then appropriately determined. A kit for determining herpes comprises the particles described above, a disposable test device having a microporous membrane and antibodies to Herpes simplex viral …
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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 February 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 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.