Drapable, water vapor permeable, wind and water resistant composite fabric and method of manufacturing same
CA 2019474 C · Owner: Lumb, Douglas · Inventors: Lumb, Douglas; Rock, Moshe; Naor, Yechiel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drapable, water vapor permeable, wind and water resistant composite fabric including a fabric substrate a layer, of a foamed water vapor porous adhesive in the surface area of one side of the fabric substrate and a layer of fabric material suitable for exposed use on the other is provided. The fabric material is preferably a layer of flocked fibers. The cellular structure of the foamed adhesive permits water vapor to pass through, however, wind and liquid water is inhibited from passing through the foam barrier. The foamed adhesive is inhibited from penetrating deeply into the fabric substrate during manufacture by an adhesive barrier material on the fabric which may be substantially …
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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 June 21, 1990 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.