Fleece laminate having high specific volume and good strength
CA 2074768 C · Owner: Jost, Manfred · Inventors: Assent, Hans Claus; Jost, Manfred; Knoke, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fleece laminate includes a filler fleece and a thread reinforced fleece and has a total thickness of more than 2 mm. The filler fleece has a low specific volume, a raw density of below 0.025 g/cm3 and a thickness of 1.6 to 60 mm. The thread reinforced fleece is composed of 10 to 60 g/m2 fleece material having a raw density above 0.035 g/cm3 and 3 to 100 g/m2 of a thread reinforcement. The laminate has a high strength in the warp direction. A fleece laminate of large volume is achieved without the reduction in volume and high density observed in conventional reinforced filler fleeces.
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 July 28, 1992 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 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.