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Expired Canadian patentCanada

Scce modified transgenic mammals and their use as models of human diseases

CA 2332655 C · Owner: Egelrud, Torbjorn · Inventors: Hansson, Lennart; Egelrud, Torbjorn

CIPO record

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Abstract From the Canadian patent

Genetic evidence that an imbalance in the activity of serine proteases can cause severe skin disease has recently been presented. The serine protease SCCE is preferentially expressed in cornifying epithelia. Increased expression of SCCE in psoriasis has previously been reported. Increased SCCE expression also in chronic lesions of atopic dermatitis is described herein. Transgenic mice expressing human SCCE in suprabasal epidermal keratinocytes were found to develop pathological skin changes with increased epidermal thickness hyperkeratosis, dermal inflammation, and severe pruritus. The results strengthen the idea that SCCE may be involved in the pathogenesis of inflammatory skin diseases …

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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 9, 2001 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 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.
FiledFebruary 9, 2001
GrantedAugust 2, 2011
Term endedFebruary 9, 2021
Patent numberCA 2332655 C
Classification (IPC)C12N5/00 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedFeb 9, 2001Patent grantedAug 2, 2011Term endedFeb 9, 2021

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