Feline interferon and process for production thereof
CA 2019803 C · Owner: Sakurai, Toru · Inventors: Satoh, Masahiro; Sakurai, Toru; Ueda, Yoshizumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recombinant silkworm nuclear polyhedrosis virus containing DNA coding for a protein of feline interferon; the recombinant virus is constructed by cotransfection of a recombinant plasmid having a gene coding for a protein of feline interferon and a silkworm nuclear polyhedrosis virus DNA into established silkworm cells, and cloning the desired recombinant virus. The recombinant virus is useful for a mass-production of feline interferon.
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 June 26, 1990 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2012.
- 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.