Air duct insulator
CA 2314003 A1 · Owner: Koecher, Wolfgang · Inventors: Koecher, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is designed similar to a U-shaped duct channel enabling prober air circulation to take place. The insulation is applied either, before or offer the installation of said air ducts depending on the, circumstances. It is to be installed to the inside roof between each of the roof, rafters or between the floor/ceiling beams over which the insulation is spread. These duct channels are designed to make sure that the airflow is not restricted by the insulation. The can be made of metal plastic or, cardboard etc. The dimensions are approximately 1" high 14" wide and 18", long, but those sizes can varie. This Invention is designed to eliminate mistakes and take the guess work out of …
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 17, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 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.