Treated fabric and method and apparatus for producing same
CA 2434815 A1 · Owner: Atex, Inc. · Inventors: Cantrell, Larry J. Sr
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A landscaping fabric that includes a pesticide is made by extruding molten polypropylene from a plurality of holes to generate filaments. The filaments are cooled, and drawn to cause the filaments to become reduced in diameter. The filaments are, distributed onto a belt to form a mat and the mat is compressed to bond the filaments into, a nonwoven fabric. An insecticide is applied to the nonwoven fabric and the nonwoven, fabric and insecticide combination is dried.
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 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 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.