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Class Information
Number: 33/379
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble
Description: Device wherein the liquid is within, and nearly filling, a closed receptacle, sufficient space being left superjacent the upper surface of the liquid to simulate a bubble.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7398600 |
Level with magnetic device |
Jul. 15, 2008 |
| 7360316 |
Level |
Apr. 22, 2008 |
| 7322118 |
Non-contact electronic level |
Jan. 29, 2008 |
| 7316074 |
Level |
Jan. 8, 2008 |
| 7263778 |
High contrast spirit-level vial |
Sep. 4, 2007 |
| 7243435 |
Level device and method of calibrating a level vial |
Jul. 17, 2007 |
| 7204029 |
Level |
Apr. 17, 2007 |
| 7150106 |
Method of using a level |
Dec. 19, 2006 |
| 7100295 |
Measuring device |
Sep. 5, 2006 |
| 7086167 |
Overmolded vial for use with a level |
Aug. 8, 2006 |
| 7047654 |
Retainer clips for securing a cylindrical level vial |
May. 23, 2006 |
| 6990742 |
Wave level |
Jan. 31, 2006 |
| 6981330 |
Multi-axis installable and adjustable level |
Jan. 3, 2006 |
| 6968626 |
Horizontal plane viewable precision bubble level |
Nov. 29, 2005 |
| 6957494 |
Dark-banded vial for use with level |
Oct. 25, 2005 |
| 6918187 |
Multi plane plumb level |
Jul. 19, 2005 |
| 6915586 |
Box level |
Jul. 12, 2005 |
| 6912793 |
Vial and method of making same |
Jul. 5, 2005 |
| 6851200 |
Reflecting lighted level |
Feb. 8, 2005 |
| 6839973 |
Multiple axis leveling device |
Jan. 11, 2005 |
| 6792686 |
Level |
Sep. 21, 2004 |
| 6779276 |
Level system |
Aug. 24, 2004 |
| 6760975 |
Vial holding level |
Jul. 13, 2004 |
| 6735880 |
Vial and method of making same |
May. 18, 2004 |
| 6691421 |
Universal non-electronic multi-sectional gradient meter and inclinometer and method of use |
Feb. 17, 2004 |
| 6684580 |
Post stabilization support |
Feb. 3, 2004 |
| 6681494 |
Bubble level |
Jan. 27, 2004 |
| 6675490 |
Level |
Jan. 13, 2004 |
| 6655036 |
Aid apparatus for level surveying instrument |
Dec. 2, 2003 |
| 6591510 |
Method and apparatus for securing and aligning bubble vials |
Jul. 15, 2003 |
| 6572073 |
Vial and method of making same |
Jun. 3, 2003 |
| 6546638 |
Self-illuminated attitude indicator and method for self-rescue from avalanche |
Apr. 15, 2003 |
| 6446821 |
Baby bottle with integral fluid delivery measurement system |
Sep. 10, 2002 |
| 6434848 |
Template for scribbing electrical box openings for old work |
Aug. 20, 2002 |
| 6430827 |
Spirit level |
Aug. 13, 2002 |
| 6386994 |
Golf green break reader |
May. 14, 2002 |
| 6343422 |
Tilt angel measuring device |
Feb. 5, 2002 |
| 6243957 |
Insert molding of a liquid-containing member, such as a level vial, and an article of manufacture formed thereby |
Jun. 12, 2001 |
| 6176020 |
Anti-thermal expansion vial mounting system |
Jan. 23, 2001 |
| 6148530 |
Level with snap action vial holder |
Nov. 21, 2000 |
| 6138369 |
Level indicator for a wall-mounted fixture |
Oct. 31, 2000 |
| 6098300 |
Method and apparatus for obtaining parallel lines on inclined planes |
Aug. 8, 2000 |
| 6095933 |
Simplified green slope indicator |
Aug. 1, 2000 |
| 6047478 |
Telescoping level apparatus and method |
Apr. 11, 2000 |
| 5926965 |
Tilt sensor and top cover plate thereof |
Jul. 27, 1999 |
| 5887783 |
Level-indicating pizza box |
Mar. 30, 1999 |
| 5865689 |
Golf-leveler device |
Feb. 2, 1999 |
| 5820476 |
Golf putter leveling system |
Oct. 13, 1998 |
| 5806197 |
Method and apparatus for obtaining parallel lines on inclined planes |
Sep. 15, 1998 |
| 5791676 |
Trailer hook-up gauge for vertical hitch alignment |
Aug. 11, 1998 |
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