Okla. Stat. tit. 12A, § 12A-4-210: Security interest of collecting bank in items,

accompanying documents and proceeds.

SECURITY INTEREST OF COLLECTING BANK IN ITEMS,

ACCOMPANYING DOCUMENTS AND PROCEEDS

(a) A collecting bank has a security interest in an item and

any accompanying documents or the proceeds of either:

(1) In case of an item deposited in an account, to the extent

to which credit given for the item has been withdrawn or applied;

(2) In case of an item for which it has given credit available

for withdrawal as of right, to the extent of the credit given,

whether or not the credit is drawn upon or there is a right of

charge-back; or

(3) If it makes an advance on or against the item.

(b) If credit given for several items received at one time or

pursuant to a single agreement is withdrawn or applied in part, the

security interest remains upon all the items, any accompanying

documents or the proceeds of either. For the purpose of this

section, credits first given are first withdrawn.

(c) Receipt by a collecting bank of a final settlement for an

item is a realization on its security interest in the item,

accompanying documents, and proceeds. So long as the bank does not

receive final settlement for the item or give up possession of the

item or possession or control of the accompanying documents for

purposes other than collection, the security interest continues to

that extent and is subject to Article 9 of this title, but:

(1) No security agreement is necessary to make the security

interest enforceable (subparagraph (A) of paragraph (3) of

subsection (b) of Section 1-9-203 of this title);

(2) No filing is required to perfect the security interest; and

(3) The security interest has priority over conflicting

perfected security interests in the item, accompanying documents, or

proceeds.