Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Element spaced from wall – ceiling – or floor and held by...
Reexamination Certificate
2005-02-08
2005-02-08
Chapman, Jeanette (Department: 3635)
Static structures (e.g., buildings)
Sheetlike element assembled parallel to existing wall,...
Element spaced from wall, ceiling, or floor and held by...
C052S664000, C052S022000
Reexamination Certificate
active
06851238
ABSTRACT:
The invention provides a ceiling-grid system including a main-runner and a cross-tee. The main-runner has a main-runner tee-portion including at least one opening having a frustoconical portion and a second portion. The cross-tee has a cross-tee tee-portion and a cross-tee support shoulder. The cross-tee tee-portion includes an end and a projection extending from the end. The cross-tee support shoulder is coupled to the cross-tee tee-portion and the projection is insertable into the frustoconical portion and slidable into the second portion.
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