Tear/puncture resistant material
CA 2270126 A1 · Owner: Quinones, Victor Manuel · Inventors: Quinones, Victor Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tear/puncture resistant material made of polyethylene and polypropylene. The material is ideally suited for wrapping steel or many other uses. The material of the present invention includes four layers attached by lamination. The outer layer is woven polyethylene, which imparts tear resistance to the material. This outer layer is laminated to a layer of extruded polyethylene. This layer which, provides breaking and puncture resistance to the material, is laminated to a layer of polypropylene which provides additional elasticity. The layer of polypropylene is laminated to an inner layer of polyethylene impregnated with a volatile corrosion inhibitor (VCI) such as sodium nitrite. This inner …
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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 April 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2021.
- 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.