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Expired Canadian patentCanada

Endothelial cell expression patterns

CA 2443995 C · Owner: St. Croix, Brad · Inventors: Vogelstein, Bert; Carson-Walter, Eleanor; St. Croix, Brad

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Abstract From the Canadian patent

To gain a better understanding of tumor angiogenesis new techniques for , isolating endothelial cells (ECs) and evaluating gene expression patterns were developed. When transcripts from ECs derived from normal and malignant colorectal tissues were compared with transcripts from non-endothelial cells over 170 genes predominantly expressed in the endothelium were identified. Comparison between normal- and tumor-derived endothelium revealed 79 differentially expressed genes, including 46 that were specifically elevated in tumor-associated endothelium. Experiments with representative genes from this group demonstrated that most were similarly expressed in the endothelium of primary lung, …

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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 April 10, 2002 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 10, 2002
GrantedJune 3, 2014
Term endedApril 10, 2022
Patent numberCA 2443995 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedApril 10, 2002Patent grantedJune 3, 2014Term endedApril 10, 2022

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