Collapsible baby playing bed
CA 2107145 C · Owner: Cheng, Ying-Hsiung · Inventors: Cheng, Ying-Hsiung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A collapsible baby playing bed includes an upper frame a lower, frame combined together with four corner joints and four leg bases and four legs. The upper frame consists of four horizontal sides which each is made of two rods connected with bending joints at the center. The lower frame consists of two crossing rod units, four bending joints two connecting rods, connecting a straight rod with a curved rod of each crossing rod unit two, movable bases which each has a foot to stand on the ground and is connected with each connecting rod, two locking bases which each has a foot to stand on the ground and is connected with each straight rod. The lower frame is capable to be collapsed and then …
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 September 28, 1993 and granted August 12, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2015.
- 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.