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Class Information
Number: 135/145
Name: Tent, canopy, umbrella, or cane > Portable shelter (i.e., tent or canopy) > Framework > Foldable > Having link means > Lazy tong type
Description: Foldable framework with link means wherein two collapsible sections are connected together by a series of pairs of diagonally crossing links, each pair being pivoted together at their midpoints and connected with the next pair at the ends so that the arrangement, as a whole, can be extended or retracted.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8701692 Collapsible portable shelter Apr. 22, 2014
8662459 Bag supporting apparatus Mar. 4, 2014
8616226 Shelter with extended eaves Dec. 31, 2013
8590553 Detent actuators, foldable apparatus including detent actuators, and related methods Nov. 26, 2013
8573238 Craft dome Nov. 5, 2013
8573240 Collapsible truss assembly Nov. 5, 2013
8568501 Transportable field containment system with transparent hood Oct. 29, 2013
8544489 Collapsible tent frame with retractable eaves Oct. 1, 2013
8418711 Collapsible canopy support structure Apr. 16, 2013
8408225 Collapsible shelter Apr. 2, 2013
8356615 Rail skirt system Jan. 22, 2013
8322356 Craft dome Dec. 4, 2012
8225808 Collapsible truss assembly Jul. 24, 2012
8220476 Frame structure for a quickly erectable canopy shelter Jul. 17, 2012
8220477 Canopy frame Jul. 17, 2012
8215326 Adjustable support assembly for a collapsible canopy Jul. 10, 2012
8074669 Expandable-collapsible multipurpose frame apparatus Dec. 13, 2011
8061378 Craft dome Nov. 22, 2011
7980029 Extendible shelter Jul. 19, 2011
7921864 Erectable shelter with collapsible central roof support Apr. 12, 2011
7891369 Collapsible shelter with flexible, collapsible canopy Feb. 22, 2011
7886758 Corner brace Feb. 15, 2011
7845365 Erectable canopy with reinforced roof structure Dec. 7, 2010
7836907 Craft dome Nov. 23, 2010
7836908 Canopy with automatic roof structure having improved structural stability Nov. 23, 2010
7832170 Expandable and collapsible structures including split scissor assembly Nov. 16, 2010
7798162 Canopy with reinforced eaves Sep. 21, 2010
7789099 Collapsible truss assembly Sep. 7, 2010
7784480 Canopy with ventilation Aug. 31, 2010
7775229 Canopy with one or more side awnings Aug. 17, 2010
7753064 Canopy latch system Jul. 13, 2010
7735505 Erectable canopy with reinforced roof structure Jun. 15, 2010
7735504 Erectable shelter with collapsible central roof support Jun. 15, 2010
7673644 Corner brace Mar. 9, 2010
7640943 Collapsible shelter with flexible, collapsible canopy Jan. 5, 2010
7637275 Telescopic post for a folding structure and one such structure Dec. 29, 2009
7628166 Craft dome Dec. 8, 2009
7624747 Erectable canopy with reinforced roof structure Dec. 1, 2009
7604212 Collapsible frame having a base mechanism Oct. 20, 2009
7584763 Collapsible frame for portable shelter Sep. 8, 2009
7556054 Foldable frame element and system with tension lock Jul. 7, 2009
7530364 Erectable canopy with reinforced roof structure May. 12, 2009
7520290 Portable collapsible awning Apr. 21, 2009
7497227 Corner brace Mar. 3, 2009
7478644 Folding frame assembly with foldable leg arrangement Jan. 20, 2009
7448401 Erectable canopy with reinforced roof structure Nov. 11, 2008
RE40544 Roof structure for folding tent frame Oct. 21, 2008
7428908 Fastener for assembling truss bars in a collapsible canopy frame Sep. 30, 2008
7422026 Structure of canopy Sep. 9, 2008
7406978 Environmental containment unit Aug. 5, 2008

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