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Expired Canadian patentCanada

Stabilized medicinal aerosol particulate formulations

CA 2396796 C · Owner: Sun, John Z. · Inventors: Sun, John Z.; Adjei, Akwete L.; Zhu, Yaping

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

A medicinal formulation is disclosed. The formulation comprises: a therapeutic amount of a protein or peptide medicament a fluid for containing said , medicament having a molecular size ranging from 1 K Dalton to about 150 K Daltons, a fluid carrier for containing the medicament and a stabilizer , selected from an amino acid a derivative thereof or a mixture of the foregoing.

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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 January 2, 2001 and granted June 21, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 2, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 2, 2001
GrantedJune 21, 2011
Term endedJanuary 2, 2021
Patent numberCA 2396796 C
Classification (IPC)A61L9/04 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJan 2, 2001Patent grantedJune 21, 2011Term endedJan 2, 2021

Sources & verification

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