Non-woven tablecloth formed with very thin endless threads
CA 2208117 C · Owner: Groten, Robert · Inventors: Groten, Robert; Riboulet, Georges; Baravian, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a non-woven cloth formed of very fine filaments. Non-woven cloth formed of continuous filaments crimped or straight, produced by a technique of direct control spinning having a grammage of between 5 g/m2 and 600 g/m2 and formed, after picking, of composite filaments divisible lengthwise distinguished in that the composite filaments demonstrate a gauge between 0.3 dTex and 10 dTex and are each formed by at least three single filaments of at least two different materials and include between them at least one separation or cleavage plane each single thread demonstrating a gauge between 0.005 dTex and 2 dTex with the relation between the transversal section of …
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 June 5, 1997 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 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.
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.