Process for the manufacture of composite foam and fabric articles
CA 1058365 A · Owner: Deere And Company · Inventors: Woods, Terrill W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A process for making composite articles such as upholstery, filled with a cellular polyurethane foam covered by a breathable porous fabric includes coating one surface of the fabric and the pores therein with a strippable coating. The fabric is then placed in a mold with the coating against the inside of the mold and is pulled down into conformity with the mold by vacuum. A liquid polyurethane foam resin is poured in place behind the fabric and foamed to a flexible solid state. The article is removed from the mold and the coating is stripped to complete the process.
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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.