Self-adhesive wallcoverings
CA 2095929 C · Owner: H-A Interiors Limited · Inventors: Williams, David A.; Brown, Kenneth D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A package comprising a sealed container containing a roll of wallcovering material which comprises a hydrophilic substrate layer, a pressure sensitive adhesive layer on one surface and on the , other surface, a decorative layer usually including a, layer of PVC or other plastics material. The wallcovering material is preferably self-wound on a roll. The moisture content of the wallcovering material is controlled in the package so as to provide a desired area of the product which falls between the area of the product where it is soaked in water under predetermined conditions and the area of the product when it is preconditioned under relatively dry, predetermined conditions. The moisture …
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 September 14, 1992 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2014.
- 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.