Diagnostics and treatments of periodontal disease
CA 2235224 C · Owner: Bhogal, Peter Singh · Inventors: Reynolds, Eric Charles; Bhogal, Peter Singh; Slakeski, Nada
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to the PrtR-PrtK cell surface protein of Porphyromonas gingivalis and in particular a multimeric cell associated protein complex comprising the PrtR and PrtK proteins. Accordingly the invention provides a substantially purified antigenic complex for use in raising an antibody response directed against Porphyromonas gingivalis. The complex comprises at least one multimeric protein complex of arginine-specific and lysine-specific thiol endopeptidases each containing at least one adhesin domain the complex , having a molecular weight of greater than about 200 kDa. The invention also relates to pharmaceutical compositions and associated agents based on said …
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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
- Filed October 30, 1996 and granted November 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2018.
- 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.