Oligopeptide anticancer and antiviral agents
CA 1308516 C · Owner: Lown, J. William · Inventors: Lown, J. William; Krowicki, Krzysztof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oligopeptide anticancer and antiviral agents are represented by the formula:, A-(NHCO)m-Het-(NHCO-Het)n-NH-R-NH-(Het-CONH)n-Het (CONH)m-A, wherein A is a moiety bearing a positive charge and of a size which avoids steric inhibition of binding of said compound to deoxyribonucleic acid sequence; R is a moiety derived from a dicarboxylic acid; Het is a five-membered heterocyclic moiety; n is 1, 2 or 3, m is 0 or 1. These compounds exhibit antiviral activity especially against herpes simplex I and II, vaccinia viruses and anticancer activity against several animal and human tumor lines.
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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 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 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.