What is Escheatment?

Companies in the U.S. are obliged to give assets that they believe are abandoned to U.S. state governments. The appropriate state government is the state where you've told us you reside; if you reside outside the U.S., then the state of Delaware, our state of incorporation, is the appropriate state government.
Different states have different rules for how long you must be inactive, but generally it is between 2 and 5 years.