Pillow top for a cushion
CA 2542598 C · Owner: Fogg, David C. · Inventors: Fogg, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cushion having an elastic core and a pillow top layer or portion. The elastic core can have one or more layers of foam to provide varying degrees of cushioning and support. The pillow top layer is positioned adjacent to the elastic core and includes a plurality of strips. Any number of strips can form the pillow top layer. The strips can all have the same density or the density can vary among the strips to provide comfort zones. The pillow top layer can be connected to the elastic core in a variety of ways such as through the use , of a common cover or separate covers joined together.
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 October 14, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2026.
- 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.