Highly processable aromatic polyamide fibers, their production and use
CA 2105092 C · Owner: Rebouillat, Serge · Inventors: Rebouillat, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to aramid fibers having a coating of an esteroil lubricant, an emulsifying system consisting of ethoxylated derivatives of unsaturated fatty acids and/or unsaturated fatty alcohols and/or ethoxy-propoxylated alkylamines and an antistatic agent: and to a process for making them.
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 2, 1992 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2014.
- 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.