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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 5669832 |
Inclination indicating apparatus and method for using the same |
Sep. 23, 1997 |
| 5617641 |
Adjustable length level |
Apr. 8, 1997 |
| 5577327 |
Adjustable length level device with internal locking mechanism |
Nov. 26, 1996 |
| 5442864 |
Level |
Aug. 22, 1995 |
| 5433011 |
Combination interlocking segmented level |
Jul. 18, 1995 |
| 5412875 |
Expandable level |
May. 9, 1995 |
| 5388338 |
Interlocking screed level |
Feb. 14, 1995 |
| 5249365 |
Telescoping level |
Oct. 5, 1993 |
| 5174034 |
All-purpose level |
Dec. 29, 1992 |
| 5155917 |
Pocket sized telescoping level apparatus |
Oct. 20, 1992 |
| 4928395 |
Extensible level |
May. 29, 1990 |
| 4910876 |
Level attachment |
Mar. 27, 1990 |
| 4894925 |
Extendable level |
Jan. 23, 1990 |
| 4862595 |
Extension level |
Sep. 5, 1989 |
| 4733475 |
Extension level apparatus |
Mar. 29, 1988 |
| 4607437 |
Adjustable level |
Aug. 26, 1986 |
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