1. The continuation of the same contract for a specified period. Cf. RENEWAL(3). [Cases: Contracts 242. C.J.S. Contracts § 407.]
2. Patents. A continuation of the life of a patent for an additional statutorily allowed period. [Cases: Patents 133. C.J.S. Patents §§ 234–235.]
3. Tax. A period of additional time to file an income-tax return beyond its due date.
4. A period of additional time to take an action, make a decision, accept an offer, or complete a task. [Cases: Internal Revenue 4474; Taxation 1079, 1313. C.J.S. Internal Revenue § 633; Taxation §§ 1699, 1758, 2038.] — extend, vb.
