Expired Canadian patentCanada
Textile fabric
CA 2223120 C · Owner: So, Kin · Inventors: Anyon, David; So, Kin
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A knitted fabric comprises a layer of hydrophillic yarn on one face of the fabric, a layer of hydrophobic yarn on the opposite face of the fabric. A pillar stitched low density, layer of yarn extends between and joins the hydrophillic and hydrophobic yarn layers.
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 December 2, 1997 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 2, 1997
GrantedFebruary 12, 2002
Term endedDecember 2, 2017
Patent numberCA 2223120 C
Classification (IPC)D04B1/14 +1 more
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.