05644870 is referenced by 40 patents and cites 61 patents.

A door according to this invention is formed from two rectangular compression molded skins with each skin having inside surface and an outside surface and on its inside surface a plurality of projecting, parallel ribs along at least two of its edges, a hinge support having a plurality of grooves on its opposite sides with the grooves operable to interlock with the ribs of the skins along one side of the door when the skins are assembled with this support and an accessory support having a plurality of grooves on its opposite sides operable to interlock the ribs of the skins along the other side of the door when the skins are assembled therewith whereby no frame is required for the door when a foamed in place polyurethane core is formed between the skins. The door used interlocking members at its side and top edges and a preformed bottom panel or insert.

Title
Compression molded door assembly
Application Number
8/490125
Publication Number
5644870
Application Date
June 14, 1995
Publication Date
July 8, 1997
Inventor
Kuei Yung Wang Chen
Taipei
TW
Agent
Finnegan Henderson Farabow Garrett & Dunner L
Assignee
Nan Ya Plastics Corporation
TW
IPC
E06B 3/96
E06B 3/00
View Original Source