Elemental mercury is a shiny, silver-white metal that is a liquid at room temperature and is traditionally used in thermometers and some electrical switches. If not enclosed, at room temperature some of the metallic mercury will evaporate and form mercury vapours. Mercury vapours are colourless and odourless.
How much time need to pass for an AR account to be considered delinquent? The amount of time required to pass for an AR account to be  considered delinquent is 30 days.
In some states, debts are too old to be brought into court as soon as three years after the delinquency, and most states' statute of limitations run for six years or fewer. But the black mark remains on your credit report for seven years, regardless of the debt's legal status. (The one exception to the seven-year rule is for New York State residents, whose demerits disappear just five years after the delinquency, if they pay the charge-off amount or satisfy a court judgment.).