Method for producing tufted and bonded carpet material and the carpet so produced
CA 2122033 A1 · Owner: Stillwell, Stacey · Inventors: Howe, Michael A.; Stillwell, Stacey; Fuller, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the combined preparation of a tufted and a bonded carpet material which method comprises bonding the top surface of a fibrous, tufted face surface of the tufted carpet material to a layer of an adhesive material secured to a backing layer to form a sandwich-type material, and splitting the sandwich-type material to provide for tufted carpet material and a bonded carpet material, each having a severed, fibrous face wear surface.
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 October 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.