Typically the visa is valid for 10years but it's at the discretion of the officers. I've seen medical visas for as little as 6mts
3months
It is valid until the end of the month (expiry date) shown on the card.
Yes, as long as you are notified of the change of date.
Until the expiration date.
6 Months from date of issue
It needs to be valid for 6 months after your proposed return date.
7years from date of judgement
a search warrant is valid for 10 days from date signed by judge.But since there are several different types of warrants for varying situations and offenses, please be more specific with your question and please specify what kind of warrant you are asking about.
Ask your opthalmologist how long the prescription is valid. His form may include an expiry date, depending on the nature of the correction of the lenses and his expectations for your next visit.
The exp. date is assuming they are kept frozen & is valid.
6 months from date written on prescription hardcopy
Each card has an expiration date printed on the front with a month and a year.