A request to withdraw an application may be cancelled and the application reinstated if--
(a) A written request for cancellation is filed at a place described in Sec. 404.614 by the claimant or someone who may sign an application for the claimant under Sec. 404.612;
(b) The claimant is alive at the time the request for cancellation is filed; and
(c) For a cancellation request received after we have approved the withdrawal, the request is filed no later than 60 days after the date of the notice of approval.