Direct soil immunoassay
CA 2049992 A1 · Owner: Petersen, Frank P. · Inventors: Miller, Suzanne M.; Petersen, Frank P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method and kit for determining the presence or absence of plant pathogens in a soil sample. The method comprises concentrating a pathogen component from the sample, disrupting the components to release an antigen of the pathogen contacting the disrupted sample with an antibody having specificity for the pathogen and observing the presence or absence of a reaction between the antigen and the antibody.
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 26, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.