That depends on the bonds and when you purchased them.
E bonds up to November, 1965 that are more than 40 years old are not earning interest any more. Neither are E bonds up to December that are more than 30 years old. 30 years on H bonds and 20 on HH bonds. Generally speaking, after a bond reaches its 'original' maturity, it automatically is extended for 10 years to a "final" maturity date.
(If you take your bonds to your bank, your bank officer should be able to tell you what your bonds are worth.)
Also, you might want to think taxes as well since at the 'final' maturity date means the interest income should be reported on your taxes.
When in doubt, check with an expert.
E bonds up to November, 1965 that are more than 40 years old are not earning interest any more. Neither are E bonds up to December that are more than 30 years old. 30 years on H bonds and 20 on HH bonds. Generally speaking, after a bond reaches its 'original' maturity, it automatically is extended for 10 years to a "final" maturity date.
(If you take your bonds to your bank, your bank officer should be able to tell you what your bonds are worth.)
Also, you might want to think taxes as well since at the 'final' maturity date means the interest income should be reported on your taxes.
When in doubt, check with an expert.