A method for making tufted nylon or polyester pile carpets and carpets prepared therefrom
CA 2176561 A1 · Owner: Blatz, Philip Strubing · Inventors: Vinod, Yashavant Vinayak; Fletcher, Eldon Lawrence; Blatz, Philip Strubing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method for making a tufted nylon or polyester pile carpet and to the resultant carpet. A thermoplastic resin consisting essentially of an ethylene copolymer having at least 8 % by weight ester groups and at least 1 % by weight carboxylic acid groups is contacted with a primary carpet backing having nylon or polyester yarn tufts. The carpet may also have a secondary backing.
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 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.