Wall panelling
CA 2049601 A1 · Owner: Not Yet Known · Inventors: Not Yet Known
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Conventional prefinished gypsum board panels i.e, panels with a decorative cover usually have irregular edges resulting in irregular, unsightly joints between adjacent panels. A simple solution to the problem includes a wall panel defined by a sheet of gypsum board with resilient edges for abutting similar resilient edges of adjacent panels and a, cover for laminate on an exterior surface of the sheet of gypsum board for retaining the resilient edges on the sheet. When such panels are used to form a wall the resilient edges, can be pushed together to form a relatively tight uninter-, rupted joint between the panels. Typically the resilient, edge is formed of cellular polyethylene.
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 August 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2013.
- 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.