If Your Passport with A Visa has Expired
If your passport containing a still valid visa has expired, you may travel with two passports - your expired passport containing the valid U.S. visa and your unexpired passport.
The United States Department of State and the Department of Homeland Security consider that the U.S. nonimmigrant visa that has not expired or been cancelled is valid, even if the passport in which it was placed is either expired or cancelled.
Any traveler with a valid visa in an expired passport and with a new valid passport, is welcome to enter the United States carrying both passports. Such travelers will be admitted, barring any other ineligibility, at any time prior to the date of the visa's expiration. It is not necessary to obtain another visa in the new passport.