Method and apparatus for the production of a fused nonwoven fabric
CA 1185844 A · Owner: Phillips Petroleum Company · Inventors: Erickson, Wayne K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fused nonwoven fabric of thermoplastic fibers having a first surface and a second surface opposite the first surface is produced by exposing at least one of the first and second surfaces of the fabric to infrared radiation and contacting at least one of the first and second surfaces of the fabric with at least one heated roll having a temperature sufficient to fuse together the fibers of the surface in contact with the heated roll.
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
- Granted April 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2002.
- 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.