Polyamide compositions
CA 2034061 A1 · Owner: Bip Chemicals Limited · Inventors: Williams, Richard Stuart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyamide composition which comprises a thermoplastic polyamide red phosphorus and an olefin copolymer. The olefin copolymer is ungrafted and is a copolymer with units from ethylene and an unsaturated ester of a saturated Cl to C4 carboxylic acid. The composition can also include a magnesium compound such as magnesium hydroxide or carbonate, and also reinforcing fibres or fillers such as glass fibres.
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 January 11, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2013.
- 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.