Teflon is a remarkable substance. It has the best resistance to chemical attack of any polymer, and it can be used at any temperature between -73 C and 260 C with no effect on its properties. It also has a very low coefficient of friction.
A stale dated warrant is an unredeemed warrant which was issued more than six months prior to the current date. A stale dated warrant is expired and the original instrument is no longer negotiable.
Personal checks older than six months are sometimes called âstale-datedâ checks. Banks/credit unions have no obligation to deposit or cash a check older than six months, but whether or not to cash a stale-dated check is ultimately at the individual bankâs/credit unionâs discretion, depending on the funds available and the financial institutionâs relationship with the customer.