non concessit

1 definition found

non concessit - Bouvier's Law Dictionary, Revised 6th Ed (1856) :

  NON CONCESSIT, Eng. law. The name of a plea by which the defendant denies 
  that the crown granted to the plaintiff by letters patent, the rights which 
  he claims as a concession from the king; as, for example, when a plaintiff 
  sues another for the infringement of his patent right, the defendant way 
  deny that the crown has granted him such a right. 
       2. The plea of non concessit does not deny the grant of a patent, but 
  of the patent as described in the plaintiff's declaration. 3 Burr. 1544; 6 
  Co. 15, b.