ultra vires contract
Defined in 1 dictionary — Case Law
Definitions from Case Law
From 291 U.S. 245 - Texas Pac Ry Co v. Pottorff · 1934Most cited · 379 citing opinions
no rights arise on an ultra vires contract, even though the contract has been performed; and that this conclusion cannot be circumvented by erecting an estoppel which would prevent challenging the legality of a power exercised