2〜3年ではなくなりませんが・・・↓
http://www.tdcanadatrust.com/accounts/fees.jsp
Dormant, inactive and unclaimed account fees
http://www.tdcanadatrust.com/accounts/fst.jsp
Dormant (abandoned) accounts - You acknowledge and agree that your account will be designated as inactive if you have not made any contact with us (by way of withdrawal, deposit, passbook update or online transaction) within a one year period. If you have not made any withdrawals or deposits (excluding service charges or interest credits) or have not communicated with us regarding the account, during the
previous 10 years, under federal law your account will be considered abandoned. We will communicate with you within 2 years, 5 years and 9 years of your last account activity. Reasonable service charges may be charged on accounts which are inactive and which are presumed to be abandoned. If there are insufficient funds in your account to cover the service charges which are payable by you, you authorize us to close the account without notice to you. Accounts which are inactive or presumed to be abandoned will be subject to escheat (this means the deposits become the property of the federal government) in accordance with federal law and transferred to the Bank of Canada. There is a process for reclaiming those deposits by filing a claim with the Bank of Canada.