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.
Stale- and Post-Dated Checks. The Accountholder shall date items drawn on an Account as of the day they are written. A stale-dated check is one that is dated six months or more before it is deposited or presented for payment. A post-dated check is one that is dated after the date it is deposited or presented for payment. The Bank may refuse to accept the deposit of stale- or post-dated checks, and it may refuse to honor such checks drawn against an Account.