contract right

Although the obligations of such a contract are protected by the Federal Constitution from impairment by the state, the contract itself is not property, which, as such, can be transferred by the owner to another, because, being personal to him with whom it was made, it is incapable of assignment. The person with whom the contract is made by the state may continue to enjoy its benefits unmolested as long as he chooses, but there his rights end, and he cannot, by any form of conveyance, transmit the contract or its benefits to a successor.