Roll-up curtain assembly for partitioning space into a private area
CA 2408446 A1 · Owner: Chen, Chih-Ming · Inventors: Chen, Chih-Ming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll-up curtain assembly comprises an elongated seat frame which is to be mounted at one, lateral side of an entrance of a private area. The seat frame has an elongated opening. A shaft receives in the seat frame for free rotating. A reverse assembly is for reversing the shaft back while the shaft rotating are angle. A curtain piece has one end thereof securing at the shaft then rolled up on the shaft. The free end of the curtain piece passes through opening of the seat frame. A stopping device mounts at the free end of the curtain piece for preventing the curtain piece reversing back in the seat frame, and a join assembly has a first join member and a second join member. The first join …
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 October 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2024.
- 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.