Expression of human cromosomal interferon-_ in animal cells
CA 1302320 C · Owner: Watanabe, Kiyoshi · Inventors: Kakutani, Tetsu; Kawaharada, Hajime; Shinjo, Katsuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Plasmids are constructed by using a human interferon-.gamma. chromosomal DNA and expression vectors and are transformed to, animal cell cultures. A chromosomal DNA can be transcribed and spliced normally by the animal host cells and natural glycosylated human interferon-.gamma. is produced.
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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
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.