Никогда не говори никогда (не истечет срок визы)

What are indefinite validity visas (Burroughs visas) and are they still valid?

Indefinite validity visas (Burroughs Visas) are tourist/business visas manually stamped into a traveler’s passport which were valid for ten years. Effective April 1, 2004, all indefinite validity Burroughs visas became void. Therefore, if you have an indefinite validity visa you must apply for a new visa for travel to the U.S.