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Expired Canadian patentCanada

Blank firing conversions for semiautomatic pistols

CA 2173589 C · Owner: L-3 Communications Corporation · Inventors: Leiter, Edward J.

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

An automatic pistol (10) for repetitively firing blank ammunition includes a frame (102) a barrel unit (118) including a barrel chamber portion and a barrel element extending from the barrel chamber portion and a slide (106) mounted on the frame (102) and reciprocally longitudinally moveable relative to the frame (102) between a forward battery position where the pistol is capable of firing and a rearward position where a spent blank cartridge is ejected. The slide (106) is initially freely moveable relative to the barrel unit (118) to an engaging position of the slide (106) displaced from the forward battery position. At the engaging position the slide (106) engages an abutment, surface …

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 4, 1994 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2016.
  • 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 4, 1994
GrantedSeptember 18, 2001
Term endedOctober 4, 2014
Patent numberCA 2173589 C
Classification (IPC)F41A21/26 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 4, 1994Patent grantedSep 18, 2001Term endedOct 4, 2014

Sources & verification

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