Metal section with an octagonal cross-section for window or door frames
CA 2088573 A1 · Owner: Zanoni, Edoardo · Inventors: Zanoni, Edoardo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The section has a tubular shape with a substantially polygonal cross-section, provided with two larger faces (1 2) opposite to, one another and two smaller faces (3 4) forming a connection with , said larger faces which extend in abutment elements (5, 6) suitable for defining with said larger faces the inner front and the outer front, respectively, of the window or door frame. The two larger faces (1, 2) comprise respective central portions (11 12), parallel to one another provided with flaps (13 14) defining, C-shaped cavities (15, 16) for housing and connecting various members of the window or door frame. Each larger face also comprises lateral portions (17, 19; 18, 20) converging towards …
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 July 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2013.
- 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.