(2) If an instrument is undated, its date is the date of its issue or, in the case of an unissued instrument, the date it first comes into possession of a holder. [1993 c.545 §16]
Date of instrument. (1) An instrument may be antedated or postdated. The date stated determines the time of payment if the instrument is payable at a fixed period after the date. Except as provided in ORS 74.4010 (3), an instrument payable on demand is not payable before the date of the instrument
ORS 73.0113 — under Chapter 73.
ORS 73.0113