WASHINGTON (Reuters) - President Barack Obama will sign wide-ranging, pro-consumer credit card reforms into law by late May, senior U.S. House Democrat Carolyn Maloney predicted on Wednesday.

"President Obama seems very determined," Maloney, who met with Obama on Tuesday at the White House, told the Reuters Global Financial Regulation Summit in Washington. "He said, 'We're going to get that bill. We're going to enact it into law'."

Maloney, who chairs Congress' Joint Economic Committee, added: "I'm predicting by Memorial Day (May 25) we will have... a law."

The House of Representatives is expected to vote Thursday on Maloney's bill, dubbed the "Credit Cardholders' Bill of Rights."

Democrats, on behalf of the Obama administration, are expected to introduce a set of amendments including requiring card issuers to maintain low introductory teaser rates on credit cards for at least six months, and to warn card holders if they are about to exceed their credit limits, allowing them to avoid a penalty fee.

Maloney, who failed during a recent bill-writing session to insert a requirement for issuers to implement changes within 90 days of the bill becoming law, said another Democratic lawmaker will re-propose that provision for the House bill.