Hindu property act

Sirs,

My father had purchased a Housing Flat on his and in the year 2000 he has died.

Sofar, after the demise of my father my elder brother has not claimed his right over my father's above flat property.  Since he has not claimed his right over the (my father's) property has he any right to claim his right over my father's property?  Suppose, after the demise of my above brother, without his claim his right till his end, his legal heirs having right to claim my brother's right over the property ?