Thermoformable acoustic sheet material
CA 2436696 A1 · Owner: Ray, Kyle A. · Inventors: Ray, Kyle A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiple layer, thermoformable acoustic sheet material useful for manufacturing acoustic absorption, acoustic barrier and/or vibration damping components includes a barrier layer of synthetic fibers having an area weight of from, about 40 grams per square foot to about 100 grams per square foot and an , absorber, layer of vertically-lapped synthetic fibers natural fibers or a combination , of synthetic and natural fibers. The thermoformable acoustic sheet materials may include additional, layers, with certain embodiments including an impermeable polymer film layer disposed, between the barrier layer and the absorber layer.
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 August 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2025.
- 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.