The time can vary. If you are speaking of having your criminal record expunged of an offense - once the judge approves it (if he does) - court orders directing the expungement will go out to the various record-keeping agencies for them to act on it. Obviously it will not happen instantaneously, but within a few weeks to a month should probably be sufficient. Ask your attrorney, or even ask the judge, they should have a good handle on the timeframe.
IT DOES NOT GO ON YOUR CRIMINAL RECORD
Unless the offense occurred prior to your 18th birthday, at which point your record will be sealed upon you become 18 - all criminal records become, and remain, a permanent part of your criminal history.
It could depend on what kind of criminal record you have. How long a record and how severe the crime(s).
Forever. Criminal records are permanent.
A criminal record is PERMANENT.
Criminal charges ALWAYS remain on your criminal record. That's why they call it a 'record.' It is a compendium of your entire criminal history.
If you are referring to a dismissal of a criminal charge - the record of your arrest and the charge will always appear on your criminal history record AND ALSO the fact that the charge was dismissed.
Your adult criminal record is a permanent party of your criminal history. It does not "go away."
Yes, you can obtain a license with a criminal record as long as you don't owe any fees to the court.
Food Stamp Fraud is a criminal offense, it will remain as a permanent part of your criminal history record.
Never. Once your busted, it remains as a criminal offence both on your driving record and criminal record.
Both misdemeanor and felony criminal offenses remain on your criminal record permanently, unless they are removed, such as by expungement.