*ECB: Rates To Remain At Present Levels Well Past Horizon Of Asset Purchases

*ECB: Rates To Remain At Present Levels For Extended Period Of Time

*ECB Holds Refi Rate Steady At Record Low 0% As Expected

*ECB Leaves Deposit Rate Unchanged At -0.40% As Expected

*ECB Retains Marginal Lending Rate At 0.25% As Expected