Structural materials
CA 2005434 A1 · Owner: Guiton, Jeremy David Lehardy · Inventors: Guiton, Jeremy David Lehardy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stiffener for a panel (40) comprises a fibre/composite box section reinforcement member (42) having a floor (44) laminated to the panel (40) and integrally to the walls of the box which in turn extend outwardly and are laminated to regions of the panel alongside the member (42). The stiffener may comprise several reinforcement members joined together and may further have a further layer of material applied across the top of the members (42) to provide a generally even top surface. A method of forming the stiffeners in glass fibre/resin composite is also disclosed. ML5.T5837FF
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 December 13, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 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.