Delaware Code
Subchapter IV. Relations of Partners to Each Other and to Partnership
§ 15-406. Continuation of partnership beyond definite term or particular undertaking.

(a) If a partnership for a definite term or particular undertaking is continued, without an express agreement, after the expiration of the term or completion of the undertaking, the rights and duties of the partners remain the same as they were at the expiration or completion, so far as is consistent with a partnership at will.
(b) If the partners, or those of them who habitually acted in the business or affairs during the term or undertaking, continue the business or affairs without any settlement or liquidation of the partnership, they are presumed to have agreed that the partnership will continue.