Method for feeding yarns
CA 2204148 C · Owner: Rule, David Peter · Inventors: Walker, William Charles; Edwards, Donald William; Rule, David Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus are disclosed to simultaneously feed yarns having different properties such as, but not limited to color, dyeability, and , texture to textile manufacturing equipment such as but not limited to, tufting machines, looms etc. The apparatus is able to feed up to 6 or more different yarns in any combination or all simultaneously and is able to delete and reintroduce inddividual yarns as needed for the textile article being produced.
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 November 16, 1995 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2017.
- 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.