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Expired Canadian patentCanada

Oral collection for immunoassay

CA 2076754 C · Owner: Orasure Technologies, Inc. · Inventors: Goldstein, Andrew S.; Zogg, David F.; Gavojdea, Stefan

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and device for collecting immunoglobulins and other analytes from the oral cavity for immunological and other testing. The device is a treated absorbent pad used to collect a specimen having a high concentration of immunoglobulins or other analytes The specimen cap be subjected to a basic immunological testing technique which can be used as a tool for screening a patient for diseases. A test kit is also provided.

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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 27, 1991 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term 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.
FiledFebruary 27, 1991
GrantedJuly 25, 2000
Term endedFebruary 27, 2011
Patent numberCA 2076754 C
Classification (IPC)A61B10/00 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 27, 1991Patent grantedJuly 25, 2000Term endedFeb 27, 2011

Sources & verification

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