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Canadian application, no grantCanada

In vitro method and probe for detecting the presence of the ring shaped particle and malignancy in humans and animals

CA 2023030 A1 · Owner: Guerrero, Robert R. · Inventors: Guerrero, Robert R.

CIPO record

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Abstract From the Canadian patent

Abstract of the Disclosure, An in vitro method and probe for determining the presence of the ring shaped particle (RSP) tumor marker and for detecting the presence of malignancy in humans and animals comprises capturing the marker out of a biological fluid containing cancerous cells onto a substrate and detecting the presence of the RSP tumor marker on the substrate as an indicator of the presence of the malignancy. One preferred method involves using an anti-RSP antibody (rspAb) selected from one or more of the monoclonal, polyclonal and affinity purified antibodies to capture the tumor marker from a sample of a biological fluid such as blood serum sputum, urine, irrigation fluids, etc.. …

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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 August 9, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 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.
FiledAugust 9, 1990
GrantedNo grant recorded
Term endedAugust 9, 2010
Patent numberCA 2023030 A1
Classification (IPC)G01N33/57 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 9, 1990Term endedAug 9, 2010

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.