Bonded fibrous articles
CA 2083852 A1 · Owner: E. I. Du Pont De Nemours And Company · Inventors: Kerawalla, Jal N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bonding non-woven fibrous structures especially using polyester , fibers as the load-bearing elements with electromagnetic, radiation after applying an electromagnetic radiation susceptor to a polyester fiber with a high amorphous content so it acts as a binder fiber between load-bearing elements.
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 May 31, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2013.
- 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.