Creel with twisting device
CA 2104473 C · Owner: Kikuchi Kogyo Co. Ltd. · Inventors: Kikuchi, Koichi; Kitagawa, Mitsuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A creel is provided for directly supplying twist yarns to a predetermined machine such as a loom or a warper from non-twist yarn bobbins. In a creel 1 for supplying twist yarns arranged in parallel to each other to a predetermined machine each, of which is prepared by withdrawing a non-twist yarn 2 from one of bobbins 3 arranged on the creel and twisting the non-twist yarn 2 midway of the supply passage to the predetermined machine, comprising a plurality of spindles 5, each supporting the respective bobbin 3 and at least one means 6 and 6a for driving the spindles 5 in an optional rotational direction and at an optional rotational speed, and an attachment 7 with a yarn storage 8 mounted at …
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 September 21, 1992 and granted October 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2014.
- 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.