Efficient masking material for applications using infrared techniques
CA 2072979 C · Owner: Morand, Philippe · Inventors: Prieur, Christian; Larmignat, Daniel; Lacreuse, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.
Abstract From the Canadian patent
The invention discloses powder materials for spreading by dispersion means to produce a camouflage cloud which is effective in the infrared. The material comprises at least a powder in which the grains are covered by a coating which is chemically inert with respect to said grains and capable of withstanding the dispersion temperature or lower and which does not oxidize in free air. The dispersion means comprise at least one hot gas generating turbine (11) with an outlet nozzle (10) a reservoir (1) with a mixer (3) holding the powder material in suspension in the vector liquid the reservoir being connected to the outlet nozzle (10) by an electric pump (8).
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 November 21, 1991 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.