Topical therapeutic composition containing oxidation inhibitor system
CA 1289883 C · Owner: Interferon Sciences, Inc. · Inventors: Testa, Douglas; Terpinski, Eva A.; Evans, Sean A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A substantially non-toxic stable, topical, therapeutic composition is provided which comprises: (a) a therapeutically active component which is susceptible to oxidative degradation:, (b) an oxidative degradation-inhibitory amount of a redox system containing, (1) a water soluble polymer containing a plurality of reducing moieties covalently bound thereto and (2) a water soluble polymer containing a plurality of oxidizing moieties-covalently bound thereto; and, (c) an aqueous vehicle base compatible with the therapeutically active component.
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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 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
- 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.