Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Outside corner or peripherally bordered
Reexamination Certificate
2008-02-05
2010-12-07
Canfield, Robert J (Department: 3633)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Outside corner or peripherally bordered
C052S656500, C052S656600, C052S586100, C049S504000, C403S295000
Reexamination Certificate
active
07845135
ABSTRACT:
The present invention relates to a window frame. According to the present invention, there is provided a window frame, which comprises: a frame unit having a pair of side jamb frames for defining both side ends of the frame unit, an upper jamb frame for defining an upper end thereof, and a sill frame for defining a lower end thereof coupled to each other to have a rectangular frame shape, the frame unit having at least one receiving groove formed in an outer wall surface thereof along a length direction thereof; and corner angles coupled to the frame unit to surround the outer wall surface of the frame unit at corners thereof, each of the corner angles having a concavo-convex portion to be received in the receiving groove, the corner angle having at least one rib protruding from an outer wall surface thereof along a length direction thereof.
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Canfield Robert J
Herring Brent W
Lahive & Cockfield LLP
Lee, Esq. EuiHoon
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