Coiled hose
CA 2424958 A1 · Owner: Mejia, Edson A. · Inventors: Weck, David; Mejia, Edson A.; Frey, Erwin M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water hose includes a helically shaped coiled tube having interior and exterior elliptical cross-sections with a flexural modulus greater than the flexural, modulus of a coiled tube having interior and exterior circular cross-sections and, the same neutral center line length as the elliptical cross-sections but , otherwise, having the same properties as the elliptical cross-sections. The tube is made of, extruded plastic resin having a durometer hardness measurement approximately in the range of 70-80 Shore A and has on its periphery ridges extending longitudinally at right angles to the elliptical cross-sections. In first and second, embodiments, the elliptical cross-sections have …
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 April 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 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.