Electric igniter
CA 1108931 A · Owner: Aktiebolaget Bofors · Inventors: Nygaard, Kurt; Bratt, Sven-Erik; Mattsson, Kjell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
An electric igniter of improved reliability with electric conduits separated by and firmly joined to an insulating body the conduits and body, being of materials with coefficients of expansion substantially unaffected by temperature changes, the conduits joined to a surface element of thin metal in pressure contact with a pryrotechnical composition.
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
- Granted September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 1998.
- 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.