Method of forming an insulation product
CA 2247342 A1 · Owner: Owens Corning · Inventors: Miller, W. Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for forming an insulation product includes centrifuging irregular glass fibers (116) using a rotary process collecting the fibers as a pack , (48) continuously withdrawing a portion of the fibers (116) from the pack (48) to generate a continuous yarn of fibers (116) and pneumatically , propelling the yarn toward a receptacle such as an insulation cativy, to form an insulation product. Also, a strand of continuous irregular textile fibers , (116) can be payed out from a wound package and pneumatically propelled toward a receptacle, such as an insulation cavity to form an insulation product.
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 March 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2019.
- 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.