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Expired Canadian patentCanada

Insect cells or fractions as adjuvant for antigens

CA 2309003 C · Owner: Voznesenski, Andrei Igorevitch · Inventors: Smith, Gale Eugene; Debartolomeis, James; Voznesenski, Andrei Igorevitch

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Abstract From the Canadian patent

Disclosed and claimed is an adjuvant for immunogenic immunological, antigenic , or vaccine compositions. The adjuvant is composed of insect cells or fractions thereof. Disclosed and claimed are also methods for preparing and using the adjuvant and compositions containing the adjuvant. Advantageously a , recombinant baculovirus containing DNA encoding and expressing an epitope of interest or antigen can be infected into insect cells such as insect cells derived from a Lepidopteran species such as S. frugiperda for expression and , the infected insect cells or a fraction thereof can be used with the expressed epitope of interest or antigen as an inventive antigen or in an inventive …

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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 November 4, 1998 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 4, 1998
GrantedOctober 2, 2012
Term endedNovember 4, 2018
Patent numberCA 2309003 C
Classification (IPC)A61K38/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 4, 1998Patent grantedOct 2, 2012Term endedNov 4, 2018

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