The bug barrier
CA 2429449 A1 · Owner: Kelly, Wendy · Inventors: Kelly, Wendy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an average dwelling, many insects gain entrance to living spaces through the heat and air, return vents. This invention creates an impenetrable barrier across the vents blocking insects, 1mm and larger from passing through the vent and into your home. The barrier is made from, screening material (either nylon fabric metal or fibreglass) normally found , in window screens. They are held tightly in place by an elastic sewn (or glued) into place around the perimeter of the, screen (sized to fit standard heat and air return vents).
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 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2025.
- 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.