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Class Information
Number: 52/784.11
Name: Static structures (e.g., buildings) > Composite prefabricated panel including adjunctive means > Sandwich or hollow with sheet-like facing members > For door or door shutter > Fire resistant
Description: Structure which is specifically designed to retard flame or the transfer of extreme heat caused by flame.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7232012 |
Elevator shaft door |
Jun. 19, 2007 |
| 7211318 |
Incombustible composition for fire door/wall, fire door/wall using incombustible composition, and method of producing fire door/wall |
May. 1, 2007 |
| 7185468 |
Multi-layered fire door and method for making the same |
Mar. 6, 2007 |
| 7147741 |
Method of making a laminated structural member |
Dec. 12, 2006 |
| 7143870 |
Elevator hall door and door hanger apparatus |
Dec. 5, 2006 |
| 7114303 |
Cover assembly for a through-penetration |
Oct. 3, 2006 |
| 7028431 |
Fire-resistant door |
Apr. 18, 2006 |
| 6988592 |
Door and door hanger device at elevator landing |
Jan. 24, 2006 |
| 6981351 |
Fire rated door with a surrounding door frame |
Jan. 3, 2006 |
| 6890398 |
Method of making structural cellular cores suitable to use of wood |
May. 10, 2005 |
| 6886306 |
Fire-resistant material and method of manufacture |
May. 3, 2005 |
| 6874284 |
Fire safety unit |
Apr. 5, 2005 |
| 6873920 |
Oxygen fire and blast fragment barriers |
Mar. 29, 2005 |
| 6846358 |
Fire door core |
Jan. 25, 2005 |
| 6668499 |
Fire door or window |
Dec. 30, 2003 |
| 6643991 |
Fire door and method of assembly |
Nov. 11, 2003 |
| 6615544 |
Fire-resistant door |
Sep. 9, 2003 |
| 6606831 |
Fire rated door and fire rated window |
Aug. 19, 2003 |
| 6588162 |
Reverse molded panel |
Jul. 8, 2003 |
| 6554893 |
Fire door core |
Apr. 29, 2003 |
| 6453638 |
Press molded door with improved reinforcement material and stile structure |
Sep. 24, 2002 |
| 6434899 |
Fire resistant door edge construction comprising a stile with groove, high density strip in the groove, an intumescent strip seal, covered by an edge lipping |
Aug. 20, 2002 |
| 6421968 |
Fire wall |
Jul. 23, 2002 |
| 6381917 |
Lift door panel |
May. 7, 2002 |
| 6344259 |
Method of finishing edge of sheet glass, heat-tempered sheet glass using the method, and fire resistant construction material using the heat-tempered sheet glass |
Feb. 5, 2002 |
| 6340389 |
Fire door core |
Jan. 22, 2002 |
| 6270915 |
Gypsum board/intumescent material ceiling boards |
Aug. 7, 2001 |
| 6182407 |
Gypsum board/intumescent material fire barrier wall |
Feb. 6, 2001 |
| 6119411 |
Enclosure which is fire-resistive for a predetermined period of time |
Sep. 19, 2000 |
| 6115976 |
Door edge assembly for creating a smoke seal about a closed door mounted within a door frame |
Sep. 12, 2000 |
| 6112496 |
Metal and wood door with composite perimeter |
Sep. 5, 2000 |
| 6061985 |
Plate-shaped fire-resistant element in a sandwich construction |
May. 16, 2000 |
| 6004655 |
Method of finishing edge of sheet glass, heat-tempered sheet glass using the method, and fire-resistant construction material using the heat-tempered sheet glass |
Dec. 21, 1999 |
| 5887402 |
Method of producing core component, and product thereof |
Mar. 30, 1999 |
| 5860268 |
Light-weight concrete door |
Jan. 19, 1999 |
| 5816017 |
Fire retardant door and exit device for same |
Oct. 6, 1998 |
| 5722213 |
Fire resistant steel door with drop-in core |
Mar. 3, 1998 |
| 5640824 |
Buildings and building components |
Jun. 24, 1997 |
| 5603194 |
Apparatus for retrofitting an existing door to provide a fire rating to the unrated existing door |
Feb. 18, 1997 |
| 5293726 |
Hollow composite interior door assembly |
Mar. 15, 1994 |
| 5045385 |
Fire retardant composition for building panels and door cores |
Sep. 3, 1991 |
| 4811538 |
Fire-resistant door |
Mar. 14, 1989 |
| 4799349 |
Fire resistant steel door |
Jan. 24, 1989 |
| 4748771 |
Fire door |
Jun. 7, 1988 |
| 4637182 |
Windowed fire door |
Jan. 20, 1987 |
| 4571915 |
Fireproof and soundproof door |
Feb. 25, 1986 |
| 4489663 |
Light weight vault door |
Dec. 25, 1984 |
| 4364987 |
Fire door construction |
Dec. 21, 1982 |
| 4343127 |
Fire door |
Aug. 10, 1982 |
| 4282687 |
Fire resistant structure |
Aug. 11, 1981 |
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