Patent ID: 7043883

Claim:
A door jamb comprising a pair of upright side jambs and a horizontal head jamb, said upright side jambs each having an upper end, said horizontal head jamb having two outer ends, said horizontal head jamb disposed between and interconnecting said upper ends of said side jambs; said upright side jambs and said head jamb each being constructed of an outer low maintenance element, an intermediate low maintenance element and an inner element; said outer element comprising an elongated tubular structure including an outer portion and an elongated portion, said elongated portion including walls defining a cavity; said intermediate element including walls defining a pair of oppositely facing cavities, one of said cavities being an outwardly facing cavity and the other of said cavities being an inwardly facing cavity; said inner element being an elongated portion having an inner exposed surface adapted for alignment with the surface of the inner wall of the residence in which the door jamb is mounted, said elongated portion of said outer element being partially inserted into said outwardly facing cavity, said inner element being partially inserted into said inwardly facing cavity; means for securing the outer element, said intermediate element and said inner element into a rough door opening.