Patent Yard Sign in
Expired Canadian patentCanada

Multiclass hybrid interferons

CA 1210715 A · Owner: Cetus Corporation · Inventors: Mark, David F.; Creasey, Abla A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Abstract New multiclass hybrid interferon polypeptides, their corresponding encoding recombinant DNA molecules and transformed hosts which produce the new interferons are described. The amino acid sequences of these hybrids include at least two different subsequences, one of which has substantial homology with a portion of a first class of interferon (eg HuIFN-.alpha.), and the other which has substantial homology with a portion of a second class of interferon (eg HuIFN-.beta.). Data indicates the interferon activity of a-.beta. hybrids may be substantially restricted to either cell growth regulatory activity or antiviral activity.

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

  • Granted September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 19, 1983
GrantedSeptember 2, 1986
Term endedSeptember 2, 2003
Patent numberCA 1210715 A
Classification (IPC)C12N15/00 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 19, 1983Patent grantedSep 2, 1986Term endedSep 2, 2003

Sources & verification

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