Composites
CA 1290533 C · Owner: E. I. Du Pont De Nemours And Company · Inventors: Chen, Eric Jyh Hong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Composites, ABSTRACT, A unidirectional composite of improved flex fatigue life comprising a matrix of thermoplastic or thermoset organic polymer reinforced with generally aligned filaments selected from the group of carbon aramid or glass, said filaments having a uniform coating of between 1 and 12% by wt. based on the filament wt. of a thermoplastic or thermoset organic polymer and said, filament coating having a modulus intermediate that of the matrix polymer and the filament.
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
- Granted October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- 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.