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Expired Canadian patentCanada

Chloroplasts engineered to express pharmaceutical proteins

CA 2608671 C · Owner: The Trustees Of The University Of Pennsylvania · Inventors: Daniell, Henry

CIPO record

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

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Abstract From the Canadian patent

Vaccines for conferring immunity in mammals to infective pathogens are provided, as well as vectors and methods for plastid transformation of plants to produce protective antigens and vaccines for oral delivery. The vaccines are operative by parenteral administration as well. The invention also extends to the transformed plants, plant parts and seeds and progeny thereof. The , invention is applicable to monocot and dicot plants.

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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 May 30, 2006 and granted May 15, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 30, 2006
GrantedMay 15, 2018
Term endedMay 30, 2026
Patent numberCA 2608671 C
Classification (IPC)A01H1/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 30, 2006Patent grantedMay 15, 2018Term endedMay 30, 2026

Sources & verification

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