Glass fibres for reinforcing organic and/or inorganic materials, composites enclosing said fibres and used compounds
CA 2528923 C · Owner: Creux, Sophie · Inventors: Creux, Sophie; Lecomte, Emmanuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to reinforcing glass fibres whose composition comprises the following components expressed in percentage by weight within the following limits: 50-65 % SiO¿2? 12-20 % AI¿2?O¿3, ?13-16 % CaO, 6-12 % MgO 0-3 % B¿2?O¿3,? 0-3 % TiO¿2, ?< 2 % Na¿2?O + K¿2?O 0-1 % F¿2,? < 1 %Fe¿2?O¿3?. The inventive fibres consist of glass exhibiting an excellent compromise between the mechanical properties thereof in terms of a specific Young modulus and the fusion and fibre properties.
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 June 9, 2004 and granted January 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2026.
- 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.