Prefabricated girder in two halves and roof structure
CA 2346533 A1 · Owner: Metelli, Luigi · Inventors: Metelli, Luigi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a girder in reinforced concrete that has a flat intrados (11) and a flat or sloping extrados (12) which consists of two , symmetrical halves or half-girders (13 14), with adjacent parts that meet in a plane mid-way (15), perpendicular to the intrados and equipped, near the , extrados (12) with connecting plates for bolting (16) and near the intrados , (11), with a joint device (17) that has bars which are parallel to the intrados.
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 August 2, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2022.
- 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.