Bed apparatus
CA 2126350 C · Owner: France Bed Co. Ltd · Inventors: Yoshino, Isamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is to provide a bed apparatus capable of easily and properly changing a height in several steps with a simple structure. A support link and a reception link in which a slider is slidably housed are pivotally disposed in a base. An engaging pin is formed on the support link. A guide portion having a plurality of engaging portions formed at predetermined intervals along the longitudinal direction is formed in the reception link. The engaging pin is slidably inserted into the guide portion. When the reception link is pivoted the, slider inhibits or allows the engaging pin to engage with the engaging portion in accordance with the pivot direction of the reception link.
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 4, 1993 and granted December 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 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.