Epoxy resin composition containing reactive flame retardant phosphonate oligomer and filler
CA 2505396 A1 · Owner: Levchik, Sergei · Inventors: Levchik, Sergei; Buczek, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An epoxy resin composition is disclosed that comprises an epoxy resin a , reactive phosphonate curing agent, an inorganic filler whose presence allows , for reduced amounts of phosphonate as compared to a composition not containing the filler, an optional polybenzoxazine resin and an optional co-curing agent.
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 November 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 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.