Chimeric antibodies and their use
CA 2057951 A1 · Owner: Watanabe, Takeshi · Inventors: Watanabe, Takeshi; Iwasa, Susumu; Tada, Hiroko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are monoclonal chimeric antibodies containing an anti-human fibrin antibody light chain variable region and/or anti-urokinase antibody light chain variable region in combination with an anti-human antibody light chain constant region. Further disclosed are DNAs comprising a DNA coding for said antibody and eukaryotic cells allowing expression of said antibodies. Said chimeric antibodies can be used for producing a thrombolytic protein complex which is, useful as thrombolytic agent by immunologically, binding a urokinase to the urokinase recognition site of said bispecific antibodies.
Read the whole patent
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 December 18, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2013.
- 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
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.