Structural curtainwall system and components therefor
CA 2116894 A1 · Owner: Neudorf, Peter · Inventors: Neudorf, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is known in structural curtainwall systems to have a series of rafters and purlins supporting glass panes. It known also to provide drainage panels in the supporting elements to drain away any water which seeps past the external surfaces of the glass panes. In this invention, separate panels are formed comprising purlins and sub-frame members and supporting glass panes. These panels will be formed off-site in a factory. The sub-frames of the panels are received directly into channels in the rafters thus enhancing the resistance of the system to leakage particularly where the panels intersect the rafters. The joint between adjacent panels spanning the same pair of rafters is sealed by …
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 March 3, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
- 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.