Definition. 1  A blood clot is a thickened mass in the blood formed by tiny substances called platelets. Clots form to stop bleeding, such as at the site of cut. 2  As soon as a blood vessel wall is damagedâby a cut or similar traumaâa series of reactions normally takes place to activate platelets to stop the bleeding.
Series EE bonds mature after 30 years, meaning they can earn interest for that period of time. EE bonds are sold for half of face value and the U.S. Treasury Department guarantees they will reach face value after 20 years. Bonds must be owned for at least one year before redemption.
These unclaimed savings bonds can add up to big money. A $1,000 savings bond purchased in 1965 that takes 40 years to mature earned interest until last year when it maxed out at $9,000. Due to inflation, experts say it is better to cash the bond in now or re-invest it so the money continues to work for you.