North Carolina General Statutes Chapter 66. Commerce and Business § 66-212. Contracting requirements

(a) Each contract for invention development services by which an invention developer undertakes invention development services for a customer is subject to this act. The contract must be in writing and the invention developer shall give a copy of the contract to the customer at the time the customer signs the contract.

(b) If it is the invention developer's normal practice to seek more than one contract in connection with an invention, or if the invention developer normally seeks to perform services in connection with an invention in more than one phase with the performance of each phase covered in one or more subsequent contracts, the invention developer shall give to the customer at the time the customer signs the first contract:

(c) For the purposes of this section, delivery of a promissory note, check, bill of exchange, or negotiable instrument of any kind to the invention developer or to a third party for the benefit of the invention developer irrespective of the date or dates appearing in that instrument is payment.

(d) Notwithstanding any contractual provisions of [to]  1 the contrary, payment for invention development services may not be required, made, or received before the fourth business day after the day on which the customer receives a copy of the contract for invention development services signed by the invention developer and the customer.

(e) Until the payment for invention development services is made, the parties during the contract for invention development services have the option to terminate the contract. The customer may exercise the option by refraining from making payment to the invention developer. The invention developer may exercise the option to terminate by giving to the customer written notice of its exercise of the option. The written notice becomes effective on receipt by the customer.