US PATENT SUBCLASS 52 / 730.3
.~.~ Closure related (e.g., stile, sash bar, mullion, etc.)

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
730.1  DF  .~ Longitudinally related striplike sections {5}
730.3.~.~ Closure related (e.g., stile, sash bar, mullion, etc.) {2}
730.4  DF  .~.~.~> Forms hollow enclosure (e.g., tubular) {1}
730.6  DF  .~.~.~> Having angular component (e.g., having L, T, Z cross-section)

DEFINITION

Classification: 52/730.3

Closure related (e.g., stile, sash bar, mullion, etc.):

(under subclass 730.1) Subject matter, wherein the longitudinally related strip-like sections are components of a closure frame.