4. Static structures (e.g., buildings)
  5. Composite prefabricated panel including adjunctive means
  6. Sandwich or hollow with sheet-like facing members

Premdor International, Inc.

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Adjustable rail assembly for exterior door still assembly...

Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash
Reexamination Certificate

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Fire door and method of assembly

Static structures (e.g. – buildings) – Composite prefabricated panel including adjunctive means – Sandwich or hollow with sheet-like facing members
Reexamination Certificate

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Method of and system for forming a fire door core

Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling heat transfer with molding material
Reexamination Certificate

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Method of and system for forming a fire door core

Plastic article or earthenware shaping or treating: apparatus – Plural female mold cavities cooperating with single press... – Male-type press member
Reexamination Certificate

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Pre-hanging clip for pre-hung door

Movable or removable closures – Movable closure and its support transferable as unit
Reexamination Certificate

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