Means for increasing the drag on a munition
CA 2258544 A1 · Owner: The Secretary Of State For Defence · Inventors: Sidford, Rufus William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A means for increasing the drag of a munition to effect a course correction having coplanar interlocking pairs of drag plates (24 26) being laterally , extendable from an undeployed configuration substantially contained within , the munition to a deployed configuration. The drag plates (101 103) are , provided with projections (34 38) and slots (36, 40), the projections (34 38) of one of a pair of drag plates being adapted to locate in the slots (34 40) of the other drag plate in the undeployed configuration and being adapted such that they extend beyond halfway into the munition. A deployment means (60, 62, 70, 72) retains the drag plates in the undeployed configuration until receipt …
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 June 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 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.