Examples of using "истёк" in a sentence and their english translations:
The deadline has passed.
My passport has expired.
Tom's passport has expired.
Their contract expired on October 20th.
The contract expired on Monday.
This milk's expiration date has come and gone!
The best before date is 3 days past, but it's probably good, right?
Oh crap, it's past the consume-by date. That's why you threw up!
The cake didn't turn out well because the flour was past its use-by date.
Mary's washing machine broke down a week after the warranty had run out.