Device for improving the resistance of structures to the impact of conventional projectiles
CA 2000436 A1 · Owner: Campenon Bernard · Inventors: Chapus, Henri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Company called:, CAMPENON BERNARD "Device for improving the resistance, of structures to the impact of conventional projectiles", (An invention of: Henri CHAPUS) The device allows the resistance of structures (2), in particular made of concrete, to the impact of conventional projectiles (1) to be improved. It comprises a surface (3) formed by a succession of ribs and grooves with a substantially V-shaped profile and smooth, inclined lateral faces, the height (H) of the said ribs being sufficient and the said surface being sufficiently hard so as to deflect the projectile (1) after impact on an inclined lateral face (4) of a rib. Use in particular, for reinforcing concrete shelters. (See …
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 October 11, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2011.
- 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.