Baby-walker with a temporarily stopping device and a safety belt
CA 2045351 A1 · Owner: Shieh, Chen-Chu · Inventors: Shieh, Chen-Chu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A baby-walker with a temporarily stopping device and a safety belt which includes a drum pivotally secured on the frames of the baby walker and having therein a torsion spring wounded around a central shaft a sheet of cloth of which, one end is received in the drum and the other portion of the cloth is wounded around the drum, and several fastening elements opposite to the drum, fixed on, the base of the baby-walker. By unwinding the cloth and securing the free end ofthe cloth on the base of the baby-walker with the fastening elements hooking thecloth the baby-walker will not move when baby steps on the cloth.
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 June 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.