Multilevel embossing of foamed-sheet materials
CA 1091993 A · Owner: Armstrong World Industries, Inc. · Inventors: Mcquate, William M.; Lewicki, Walter J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The process herein is used for achieving multilevel mechanical embossing of an expanded foam having a fused or cured wear layer in register with a print on the foam. The expansion of the decorative foam and fusion of the wear layer are carried out and then the back of the foam is cooled by back wetting with or without drum cooling. The wear layer is maintained at a high temperature for embossing and is embossed with registry between the embossed pattern and the printed pattern on the foam.
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 December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 1997.
- 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.