Method and apparatus for manufacturing a textile based heat-bonding product
CA 2007681 C · Owner: Groshens, Pierre · Inventors: Demoulin, Bernard; Groshens, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure herein describes a method of manufacturing a textile based heat-bonding product by hot spot coating, of the type in which a heat-bonding polymer is brought to melting point; a photogravure cylinder brought to a temperature higher than the melting temperature of the heat-bonding polymer is coated with said heat adhesive polymer; the surface of the cylinder is scraped, characterized in that the heatbonding polymer is deposited in the form of spots on a transfer mat by the photogravure cylinder and these, heat-bonding polymer spots are then placed in contact with the textile supporting base for transfer thereto.
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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 January 12, 1990 and granted November 19, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2012.
- 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.