Knockdown doorframe for adjustably accommodating wall thickness and building method thereof
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United States of America Patent
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May 19, 2009
Grant Date -
Feb 1, 2007
app pub date -
Jul 6, 2006
filing date -
Jul 6, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A knockdown doorframe includes: a pair or jambs respectively secured to a right and a left vertical side wall of a doorway, each jamb having an adjustable covering plate adjustably shielding a side portion of the jamb with the wall; and a lintel horizontally secured to a top portion of each jamb adjacent to a horizontal top wall of the doorway and having an adjustable horizontal covering plate adjustably shielding an upper portion of the lintel and the horizontal top wall, whereby upon a sliding or telescopic movement of each covering plate in each jamb or in the lintel, the covering plate may adjustably well shield the jamb or lintel with the wall having variable wall thickness for security and ornamental purposes.
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