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Class Information
Number: 33/722
Name: Geometrical instruments > Distance measuring > Sounding type > For nongaseous material > Liquid (e.g. dipstick)
Description: Subject matter wherein the fluid being measured is of the liquid type.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7430814 |
Oil filling structure of internal combustion engine |
Oct. 7, 2008 |
| 7418788 |
Temperature sensitive dipstick |
Sep. 2, 2008 |
| 7322232 |
Dipstick-shielding tube and method of use |
Jan. 29, 2008 |
| 7285251 |
Tool for loading reactor tubes |
Oct. 23, 2007 |
| 7191542 |
Oil level gauge |
Mar. 20, 2007 |
| 7159330 |
Oil level gauge guide structure |
Jan. 9, 2007 |
| 7134220 |
Fluid level measuring device having at least one compressible member |
Nov. 14, 2006 |
| 7131213 |
Fluid level measuring device |
Nov. 7, 2006 |
| 7100744 |
Internal combustion engine |
Sep. 5, 2006 |
| 7055384 |
Fluid level measuring device |
Jun. 6, 2006 |
| 6981335 |
Diesel fuel gauge |
Jan. 3, 2006 |
| 6752173 |
Plug means |
Jun. 22, 2004 |
| 6581450 |
Method and apparatus for accurately determining an amount of fuel required to transport a vehicle a known distance |
Jun. 24, 2003 |
| 6453740 |
Fluid level measuring device |
Sep. 24, 2002 |
| 6443000 |
Measuring stick and thermometer |
Sep. 3, 2002 |
| 6347461 |
Portable draft measurement device and method of use therefor |
Feb. 19, 2002 |
| 6314808 |
Fluid level measuring device |
Nov. 13, 2001 |
| 6289601 |
Dipstick guide apparatus |
Sep. 18, 2001 |
| 6018882 |
Oil dipstick wiper |
Feb. 1, 2000 |
| 5992037 |
Oil level indicator for an engine with an integral spring for establishment of a calibration position |
Nov. 30, 1999 |
| 5832621 |
Dipstick light assembly |
Nov. 10, 1998 |
| 5829153 |
Lockable cap assembly |
Nov. 3, 1998 |
| 5613303 |
Oil level gauge |
Mar. 25, 1997 |
| 5544419 |
Dipstick assembly |
Aug. 13, 1996 |
| 5485681 |
Swivel type dipstik |
Jan. 23, 1996 |
| 5325981 |
Plastic reservoir cap |
Jul. 5, 1994 |
| 5299456 |
Electronic dipstick for indicating the oil level of an engine |
Apr. 5, 1994 |
| 5241753 |
Adjustable dip stick guide |
Sep. 7, 1993 |
| 5172739 |
Waste liquid transfer device |
Dec. 22, 1992 |
| 5113594 |
Oil level gauge |
May. 19, 1992 |
| 5099584 |
Self wiping dipstick |
Mar. 31, 1992 |
| 5086943 |
Sealing cap assembly for an access aperture |
Feb. 11, 1992 |
| 5065623 |
Water Monitor |
Nov. 19, 1991 |
| 5046263 |
Oil level monitoring device for automotive automatic power transmission |
Sep. 10, 1991 |
| 4991434 |
Method and apparatus for determining whether a liquid in a reservoir is above a certain level |
Feb. 12, 1991 |
| 4981016 |
Master cylinder dip stick |
Jan. 1, 1991 |
| 4941268 |
Oil level gauge |
Jul. 17, 1990 |
| 4894926 |
Dipstick guide |
Jan. 23, 1990 |
| 4881486 |
Remote indicating dip stick |
Nov. 21, 1989 |
| 4858328 |
Manually manipulated distance measuring tool |
Aug. 22, 1989 |
| 4761886 |
Dipstick for measuring oil or fluid levels |
Aug. 9, 1988 |
| 4596141 |
Electrically operated oil level gauge |
Jun. 24, 1986 |
| 4480718 |
Engine lubricating oil level regulator and replenish oil warning system |
Nov. 6, 1984 |
| 4331185 |
Transmission filler assembly |
May. 25, 1982 |
| 4235186 |
Oil level indicator |
Nov. 25, 1980 |
| 4214368 |
Dipstick for liquid nitrogen |
Jul. 29, 1980 |
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