16. A patient—N.I.
(a)who was admitted to hospital in pursuance of an application for admission; or
(b)in respect of whom a guardianship application was accepted; or
(c)in respect of whom a hospital order was made,
before the appointed day may make an application to the Review Tribunal within the period of six months beginning with the day on which he attains the age of 16 years if that period is later than that which would otherwise apply to an application in his case.