Acoustic mantle
CA 2079972 A1 · Owner: Toro Industria E. Comercio Ltda. · Inventors: Santiago, Claudio Vaz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a process comprising processing and/or cleaning fibers and opening them with the, composition then being formed. Thereafter the material so, prepared undergoes carding or is formed into a membrane with optional needle-shaping. In the needle-shaping the fibers, are intertwined by means of specific needles while in the, absence of needle-shaping the membrane is carded or, pneumatically condensed. The membrane obtained by such a process can be formed for specific uses into strips or, compacted parts having a certain flexibility by pressing so, forming parts with multiple forms or totally planar parts. For special uses of the membrane thermoplastic fibers, having a low …
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 October 6, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 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.