Presidential $1 Coin Act of 2004 - Amends Federal monetary law to set forth requirements for the redesign and issuance of circulating $1 coins emblematic of each President of the United States.
Prohibits inclusion of a President who has not completed his or her term of service (sitting President).
Instructs the Secretary of the Treasury to issue during the same period in which such $1 coins are issued commemorative coins emblematic of the spouse of each deceased former President so honored.
Mandates that all Federal agencies and instrumentalities and entities that operate any business on Federal premises (including vending machines) take action to ensure that business operations they conduct that involve coins or currency shall be fully capable of accepting and dispensing $1 coins in connection with such operations.
Expresses the sense of Congress about the issuance of such coins.