Smoke munition
CA 2108991 C · Owner: Larmignat, Daniel · Inventors: Lepezennec, Jean-Pierre; Larmignat, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
The technical sector of the invention is smoke-generating munitions. The munition (1) according to the invention comprises at least two smoke pots (7a 7b) in a covering (2) and ejected from the latter by an ejection compound (15) each pot has an axial channel (14a, 14b) and the axial channels are aligned so as to constitute a channel for igniting the smoke pots ignition being effected by the ejection compound this munition is remarkable in that it comprises means (18) of ensuring temporary axial linkage between the two smoke pots (7a 7b) on ejection and during travel. Application to munitions generating a cloud of smoke opaque to infrared light.
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 October 22, 1993 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2015.
- 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.