Flame retardant compositions
CA 2312372 A1 · Owner: Bandyopadhyay, Pradip K. · Inventors: Bandyopadhyay, Pradip K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-dripping, flame retardant heat-shrinkable composition consisting essentially of at least one semi-crystalline polymer selected from the group consisting of ethylene vinyl acetate, ethylene ethyl acetate and low density , polyethylene, at least 0.5 % melamime pyrophosphate a halogenated flame , retardant, and an additive consisting of alkaline earth metal oxides and hydroxides, silicone dioxide, titanium dioxide zinc oxide aluminum oxide, aluminum oxide trihydrate antimony oxide and the like.
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 April 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2020.
- 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.