Mesh lumbar support belt
CA 2128367 C · Owner: Watson, George W. · Inventors: Watson, George W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elongate semiflexible woven lumbar support belt has a wide central support portion and a pair of interconnectable opposite end portions which are significantly narrower than the central support portion. The central support portion is formed from a webbing having a plurality of warp strands interwoven with a plurality of weft strands. The warp and weft strands respectively, are fixedly attached to each other at angular junctions such that the stiffness of the webbing is greater than if the strands were not fixedly attached to each other at the angular junctions. The warp strands are spaced apart from each other and the weft strands likewise are spaced apart from each other to provide …
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 July 19, 1994 and granted July 22, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2016.
- 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.