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Expired Canadian patentCanada

Dart game target construction

CA 1309430 C · Owner: Brejcha, Robert J. · Inventors: Devale, Donald P.; Lantz, Gregory W.; Brejcha, Robert 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

A dart game target having a base on which is assembled a plurality of individual, relatively movable target members separated from one another by a frame having thin ribs interposed between adjacent members. The target members are yieldably biased in a direction away from the base. Movement of the members in a direction away from the base is limited by laterally extending projections carried by the target members which underlie the inner surfaces of the ribs. The arrangement is such that no part of any rib overlies any exposed part of any target member. Warping of the frame or of the base is compensated for by protrusions on selected ones of the ribs which extend in a direction toward the …

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 October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 6, 1988
GrantedOctober 27, 1992
Term endedOctober 27, 2009
Patent numberCA 1309430 C
Classification (IPC)F41J3/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedDec 6, 1988Patent grantedOct 27, 1992Term endedOct 27, 2009

Sources & verification

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