Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 182/160
Name: Fire escape, ladder, or scaffold > Unitary foldable, rigid scaffold or ladder > Collapsible ladder > Parallel moving side, pivoted rung or step > Storage providing component
Description: Device wherein the stiles construction forms a compartment or housing for storing the remainder of the ladder structure.










Patents under this class:

Patent Number Title Of Patent Date Issued
8579083 Method and stepladder with a tray Nov. 12, 2013
6715584 Escape ladder Apr. 6, 2004
6536558 Folding ladder Mar. 25, 2003
6457559 Foldable ladder Oct. 1, 2002
6145621 Boarding ladder for a boat bow Nov. 14, 2000
5788011 Foldable ladder Aug. 4, 1998
5757650 Method of correcting stock condition in an automated storehouse control and apparatus therefor, and method of correcting conveyance state of parts and apparatus therefor May. 26, 1998
5685394 Automatic blockading system device for ladders or folding portable stepladder in transversal sense Nov. 11, 1997
5372217 Emergency escape device Dec. 13, 1994
5339920 Foldable fire-escape ladder Aug. 23, 1994
5195610 Bidirectionally foldable step ladder Mar. 23, 1993
4998599 Foldable ladder Mar. 12, 1991
4842099 Foldable ladder Jun. 27, 1989
4815564 Folding ladder Mar. 28, 1989
4785912 Folding ladder Nov. 22, 1988
4702347 Folding, burglar proof fire escape ladder with separate release stations and safety belts with locking brackets Oct. 27, 1987
4678060 Collapsible ladder device Jul. 7, 1987
4655319 Folding ladder Apr. 7, 1987
4618027 Folding ladder with three stiles Oct. 21, 1986
4569419 Foldable stepladder Feb. 11, 1986
4560030 Folding ladder Dec. 24, 1985
4549632 Ladder Oct. 29, 1985
4489807 Contractible escape ladder Dec. 25, 1984
4463829 Foldable ladder Aug. 7, 1984
4425983 Folding fire escape ladder Jan. 17, 1984
4245717 Fire escape ladder Jan. 20, 1981
4243119 Folding building side mounted fire ladder Jan. 6, 1981
4189028 Folding fire escape ladder Feb. 19, 1980
4037686 Escape ladder Jul. 26, 1977
4016954 Foldable ladder Apr. 12, 1977











 
 
  Recently Added Patents
Potential separation for filling level radar
Visual indicator of online backup
Control device with adjusting pulse width modulation function and the backlight module thereof
Combination therapy to enhance NK cell mediated cytotoxicity
Flexible organic light emitting device and manufacturing method thereof
Continuous geospatial tracking system and method
Controlling generation of debug exceptions
  Randomly Featured Patents
Disc assembly hair remover
Polymer membranes
Machine for the automatic testing of electric motor rotors
Method and apparatus for interoperability between voice transmission systems during speech inactivity
Booster pilot valve
Programming and evaluating through PMOS injection
Mechanism for producing pad-like cushioning dunnage from sheet material
Integrated circuit design using modified cells
Valve analytical system
Boat loader and unloader