Colored doormats, method of manufacturing and manufacturing device
CA 2127149 C · Owner: Yugengaisya Towa · Inventors: Nakata, Akira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A doormat to be formed by accumulating a large number of monofilaments in a random loop form is manufactured in long size continuously to present a mottled pattern or a striped pattern by the combination of colored monofilaments of more than two colors. This manufacturing device comprising a spinning pack 1 having plane rectangular shape for spinning a large number of monofilaments a plurality, of extruders 6A, 6B disposed at symmetrical positions in the longitudinal direction of the spinning pack 1 and a, collecting mechanism for collecting the monofilaments spun from the spinning pack 1, whereby the spinning pack 1 is provided with a resin flowpath changeover unit 2 and a multi-hole …
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 June 30, 1994 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2016.
- 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.