Static structures (e.g. – buildings) – Sectioned imperforate facing within perpheral frame; e.g.,...
Reexamination Certificate
2007-03-06
2007-03-06
Slack, Naoko (Department: 3635)
Static structures (e.g., buildings)
Sectioned imperforate facing within perpheral frame; e.g.,...
C052S794100, C052S784110, C052S783130, C052S309900
Reexamination Certificate
active
10284392
ABSTRACT:
A door has a core that includes a porous layer having a thickness and two opposing major surfaces. In one construction, the core also includes three fire-retardant layers, and two of the fire-retardant layers are separated by the porous layer. The porous layer and the fire-retardant layers are coupled together. Other constructions include one or more fire-retardant layers in balanced or unbalanced placement around the porous layer.
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Clark Randy Jon
Koepke Gary Lee
Lewallen Keith Lynn
Olson Brent David
Transue William Robert
Jeld-Wen, inc.
Nelson Mullins Riley & Scarborough LLP
Nguyen Chi Q.
Slack Naoko
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