Quantitative immunocytochemistry assay
CA 2042018 A1 · Owner: Battifora, Hector A. · Inventors: Battifora, Hector A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An internal control or standard is provided for the direct guantitative assay by immunocytochemistry of target molecules in tissue specimens and the like. The control is subjected to the same conditions including immunostaining as the tissue specimen. Optical density of the control and the specimen after staining is compared, preferably by a cell analysis computer system.
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 September 26, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 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.