Mechanical fastener
CA 2300799 C · Owner: Uni-Charm Corporation · Inventors: Baba, Toshimitsu; Igaue, Takamitsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mechanical fastener including a loop member 1 includes a base sheet 3 and a plurality of continuous filaments 2 extending substantially parallel one to another on one surface of the base sheet 3 substantially parallel one direction and the filaments 2 are bonded to the base sheet 3 along at least a pair of bonding zones 5 6 extending transversely of the filaments 2 to form a plurality of loop elements 4a extending between the pair of bonding zones 5 6.
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 15, 2000 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2022.
- 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.