Chair back with lumbar and pelvic supports
CA 2829902 C · Owner: Haworth, Inc. · Inventors: Beyer, Pete J.; Wilkerson, Larry A.; Bellingar, Teresa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An office chair (10) is provided having a back assembly (24) which is configured to provide supplemental support to the back of a chair occupant in addition to the support provided by the primary support surface (31) of the chair back. The chair back includes a lumbar support unit (28) having a lumbar support pad (91) wherein asymmetric support is provided to the left and right halves of the lumbar pad (91). As such the asymmetric support loads are independently adjustable to more comfortably support a chair occupant. The chair back also includes a pelvic support pad (29) which is disposed vertically adjacent to the lumbar support (28).
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 March 1, 2006 and granted July 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 1, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.