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Class Information
Number: 244/129.6
Name: Aeronautics > Aircraft structure > Details > Steps
Description: Apparatus wherein the aircraft part comprises stair or other foothold means for ascent or descent from one level to another.










Patents under this class:

Patent Number Title Of Patent Date Issued
8469312 Integrated maintenance step on helicopter fuselage Jun. 25, 2013
8336825 Passenger stairway for an aircraft and method for pulling in and out the passenger stairway Dec. 25, 2012
8196865 Foldable step for a vehicle, and a vehicle provided with such a step unit Jun. 12, 2012
8157215 Door opening and closing apparatus for aircraft Apr. 17, 2012
7984876 Aircraft walkway Jul. 26, 2011
7963482 Aircraft door Jun. 21, 2011
6986485 Overhead space access stowable staircase Jan. 17, 2006
6616098 Mid-level deck for passenger aircraft Sep. 9, 2003
6450450 Low cost structural fabrication that resists catastrophic failure under rapid thermal loading Sep. 17, 2002
6382562 AFT egress and control device for an aircraft May. 7, 2002
5806627 Helicopter stairs Sep. 15, 1998
5803404 Door actuation system having a variable damping device Sep. 8, 1998
5692706 Inflatable float step-reinforcement system Dec. 2, 1997
5395075 Stair and stairwell construction for connecting two decks in an aircraft Mar. 7, 1995
5335880 Cargo compartment door for an aircraft Aug. 9, 1994
5143324 Aircraft cabin stairs Sep. 1, 1992
5093677 Apparatus for mounting a remote controlled, gyro-stabilized camera externally on a helicopter Mar. 3, 1992
4669574 Foldable staircases for vehicles Jun. 2, 1987
4639032 Tail gate step Jan. 27, 1987
4482113 Integrated paratroop door Nov. 13, 1984
4453684 Step operated locking mechanism for aircraft lower door Jun. 12, 1984
4440364 Retractable aircraft step Apr. 3, 1984
4175495 Entrance step arrangement for a short distance transport vehicle Nov. 27, 1979
4039163 Aircraft cargo ramp Aug. 2, 1977
4014486 Door activated airborne stair structure Mar. 29, 1977
3941337 Airplane stairway Mar. 2, 1976











 
 
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