Colo. Rev. Stat. § 4-8-203
After an act or event, other than a call that has been revoked, creating a right to immediate performance of the principal obligation represented by a certificated security or setting a date on or after which the security is to be presented or surrendered for redemption or exchange, a purchaser is charged with notice of any defect in its issue or defense of the issuer, if the act or event:
Source: L. 96: Entire article R&RE, p. 217, § 2, effective July 1.
Editor's note: This section is similar to former § 4-8-203 as it existed prior to 1996.