Delayed release anti-viral product, use and formulation thereof
CA 2494017 A1 · Owner: Isbister, James D. · Inventors: Wassink, Sandra E.; Isbister, James D.; Treacy, Donald J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anti-viral product is comprised of at least three delayed release dosages forms, each of which has a different release profile with the C~,ax for the , anti-viral product being reached in less than about twelve hours after initial release of anti-viral from the product.
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 August 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2025.
- 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.