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Expired Canadian patentCanada

Impact detonator with a detonator capsule

CA 1285176 C · Owner: Weber, Adolf · Inventors: Bankel, Adolf; Weber, Adolf; Strauss, Hans

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

With the increasing calibre of spin-stabilized projectiles, the penetration energy that is required for initiation purposes by means of an inertially dependent striker with a defined delay time is no longer available. A highly sensitive mechanical ignition system that is particularly well suited for use against thin targets, at shallow angles of impact and at long ranges, initiates the firing process with an adequate delay time and foresees that a compression spring drives a firing pin through an inertially dependent safety system. :

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 June 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 6, 1986
GrantedJune 25, 1991
Term endedJune 25, 2008
Patent numberCA 1285176 C
Classification (IPC)F42C1/04

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 6, 1986Patent grantedJune 25, 1991Term endedJune 25, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.