Monoclonal antibody, process for preparing same, reagent for detecting cancer antigen containing the monoclonal antibody and process for preparing same
CA 1309039 C · Owner: Kobayashi, Takashi · Inventors: Taniguchi, Tomokuni; Kanou, Yoshiaki; Kashiwagi, Eiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monoclonal antibody is described having, a specific reactivity with a cancer-associated antigen selected from pancreas cancer-associated antigen intestinum, crassum cancer associated antigen and hepatoma-associated antiyen and has the following characteristics: (1) it exists in a blood serum of pancreas cancer, intestinum crassum cancer and hepatoma patients; (2) it comprises glycoproteins;, (3) it has a molecular weight of about 700,000 to 1,500,000, as measured by gel-filtration and determined by comparison with that of a known protein; (4) it has a maximum absorption of 280 nm when dissolved in 0.1 M acetic acid buffer solution (pH 4.5); and, (5) it is released at least in a cultured …
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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
- Granted October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.