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Class Information
Number: 33/374
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Relatively movable, coacting, reference-surface sections
Description: Device including a plurality or relatively moveable members, each having a surface adapted for simultaneous contact with a workpiece, and which surfaces together determine that direction of the workpiece which is to be related to the level or plumb.










Sub-classes under this class:

Class Number Class Name Patents
33/375 Affecting level or plumb indication 27


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8413343 Extendable plumb and level measuring device and associated usage method Apr. 9, 2013
8407906 Window frame deflection measurement device and method of use Apr. 2, 2013
8261459 Extendable edge reference tool Sep. 11, 2012
8205347 Loader tool level indicator Jun. 26, 2012
8104187 Window frame deflection measurement device and method of use Jan. 31, 2012
8046929 Stretch level Nov. 1, 2011
7963044 Modular construction level Jun. 21, 2011
7832113 Collapsible level and utility device Nov. 16, 2010
7805850 Extendable edge reference tool Oct. 5, 2010
7797848 Folding carpenter's level Sep. 21, 2010
7748128 Slab doctor level Jul. 6, 2010
7562463 Combination level and square Jul. 21, 2009
7530175 Twin level May. 12, 2009
7520066 Collapsible level and utility device Apr. 21, 2009
7509752 Level with adjustable fastener locators Mar. 31, 2009
7497022 Plate level Mar. 3, 2009
7363719 Pocket level Apr. 29, 2008
7290346 Extension set for spirit levels Nov. 6, 2007
7281335 Carpenter's level Oct. 16, 2007
7210243 Level with adjustable fastener locators May. 1, 2007
7159328 Measurement gauge incorporating a level Jan. 9, 2007
6981330 Multi-axis installable and adjustable level Jan. 3, 2006
6963284 Level for indicating object tilt along user line of sight Nov. 8, 2005
6915585 Spirit level Jul. 12, 2005
6912794 Bricklayer's combination level and plumb Jul. 5, 2005
6836973 Versa level Jan. 4, 2005
6810592 Adjustable door jamb setting jig Nov. 2, 2004
6807743 Square level Oct. 26, 2004
6796045 Level with retractable hanger structure Sep. 28, 2004
6694632 Level Feb. 24, 2004
6658752 Extensible carpenter's level Dec. 9, 2003
6640455 Sliding adjustable track level Nov. 4, 2003
6637120 Extendable level Oct. 28, 2003
6560885 Multi-configurable modular level May. 13, 2003
6543148 Level with plumb alignment features Apr. 8, 2003
6332277 Level with securing apparatus Dec. 25, 2001
6293023 Level Sep. 25, 2001
6282805 Multi-configurable modular level with adjustable bubble vial Sep. 4, 2001
6279240 Extensible carpenter's level Aug. 28, 2001
6237237 Multi-purpose plumbing and measuring apparatus May. 29, 2001
6178649 Optical calibrating apparatus for emitting datum laser line Jan. 30, 2001
6167631 Plummet level Jan. 2, 2001
6148529 Multipurpose retractable leveling device Nov. 21, 2000
6058617 Audio visual combination extension level May. 9, 2000
6047478 Telescoping level apparatus and method Apr. 11, 2000
6041510 Extension level, square and length gauge Mar. 28, 2000
6029359 Post, pipe, and sign level Feb. 29, 2000
5878502 Apparatus and method for comparing a grade to a predetermined slope Mar. 9, 1999
5839200 Multi-function horizontal and vertical alignment tool Nov. 24, 1998
5806196 Method and apparatus for aligning a towed vehicle with a towing vehicle Sep. 15, 1998

1 2










 
 
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