Thermoplastic polymer structures for rockets and thermoplastic polymer propellants
CA 2210438 A1 · Owner: Cesaroni, Anthony Joseph · Inventors: Cesaroni, Anthony Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A propellant is disclosed, comprising, as binder a, moisture curable ethylene copolymer especially a silane-grafted ethylene/vinyl acetate copolymer. The propellant is particularly useful as a rocket propellant. A rocket structure is disclosed for use under high temperature stress. The structure comprises thermoplastic polymer in a matrix of fibre having high temperature resistance, the thermoplastic polymer being selected from high temperature-resistant engineering thermoplastic polymers and moisture-curable thermoplastic polymers. The thermoplastic polymer ablates during said high temperature stress to provide a matrix of said fibre having structural integrity. A method of manufacture …
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.
Why it's free to use
- Filed July 15, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 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.