Conn. Gen. Stat. § 3-59b

Any ownership interest in a business association, as defined in section 3-56a , as evidenced by the stock records or membership records of the business association, owned by a person who for more than three years has neither claimed a dividend or other sum referred to in section 3-59a , nor corresponded in writing with the association, nor otherwise indicated an interest in such ownership interest as evidenced by a memorandum or other record on file with the association, is presumed abandoned.