Method and device for studying and quantifying interacting effects of substances on biological cells
CA 2037181 A1 · Owner: Bolmstrom, Anne · Inventors: Bolmstrom, Anne; Ericsson, Magnus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device and method for quantitative determination of the interacting effects of two or more substances on the promotion or inhibition of growth of microorganisms or other biological cells grown on a solid medium, wherein the substances are applied within a quadrate test area in the solid medium in predefined concentration patterns having concentration perimeters exhibiting maxima and minima at opposite edges of the test area and with the concentration gradient directions of the substances perpendicular to each other.
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 February 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 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.