Non-fiberglass sound absorbing moldable thermoplastic structure and method of fabrication
CA 2277350 A1 · Owner: Harodite Industries, Inc. · Inventors: Albert, Michael P.; North, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-fiberglass containing sound absorbing moldable laminate of a fibrous batt and stiffening mats formed from chopped mono-filament polyester bonded by a thermoplastic binder is provided. The mono-filament mats stiffen the batt and allow use of all thermoplastic material in the composite.
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 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.