Product and method of printing carpet - ii
CA 1093255 A · Owner: Armstrong World Industries, Inc. · Inventors: Ray, Leonard N. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pattern is placed on one surface of a carpet backing by the use of sublimable dyes. A carpet facing is tufted into the backing with the face yarns on the side of the backing opposite from the side of the backing containing the pattern of dyes. Subsequent heating causes the sublimable dyes to move from the carpet backing surface through the carpet backing and then through the face yarn to provide a dyed patterned face yarn. A latex coating is provided to the carpet backing to lock the tufted carpet face yarns to the carpet backing and to lock residual dye to the surface of the carpet backing.
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 January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- 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.