Weighted structures
CA 2357442 A1 · Owner: Bandex Verwaltungs-Gmbh · Inventors: Boyle, Ross
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A weighted structure (13) for attachment along the foot of curtaining to ensure even hanging has a series of weights (4) attached at intervals along a cord (3). The assembly (2) of the cord (3) and weights (4) is enclosed within a tube (1). The tube (1) is applied to the assembly (2) by extrusion, the assembly (2) being passed through a die (8) together with molten plastics.
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 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2023.
- 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.