Curtain wall for a building
CA 2017669 C · Owner: Nonis, Albino D. · Inventors: Nonis, Albino D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A curtain wall for a building structure is provided in which structural members and diaphragms are used to reinforce a relatively light frame such that the number of connections to the building required is reduced to one or two. As a result, problems associated with differential settlement or deflection of the building are minimized handling and installation is simplified and the associated, costs are reduced. Novel connection means are also provided which enable the individual wall modules of a multimodule building to be aligned and repositioned independent of their adjacent wall modules after all modules have been erected and are supported upon the connections. The curtain wall module …
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 May 28, 1990 and granted July 21, 1992. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2012.
- 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.