Outer wall element for buildings, in particular wainscot panel for the breastwork area of the wall of a building
CA 2173833 A1 · Owner: Schulz, Harald · Inventors: Schulz, Harald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The outer wall element has a transparent outer heatinsulating layer (30), located adjacent to the outer radiation absorbing shell (10) and arranged between this outer shell (10) and an inner shell (20) whereby this inner, shell (20) has at least one inner heat insulating layer (22) and the transparent outer heat insulating layer (30) is delimited at the side of the inner shell (20) by a radiation absorbing layer (21'). The g-value of the outer shell (10) is reduced to such an extent that no temperatures that would be destructive of materials can occur at the maximum expected insolation at the absorbing layer (21').
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 October 12, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 12, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 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.