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Class Information
Number: 138/89.4
Name: Pipes and tubular conduits > With closures and plugs > Inflation stem type > Dust cap
Description: Closures for pipes of the inflation stem type comprising dust caps.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610937 |
Self-sealing regulator fill port protective/dust cover |
Nov. 3, 2009 |
| 7328723 |
Pipe nipple protective sleeve |
Feb. 12, 2008 |
| 6874541 |
Temporary duct cover |
Apr. 5, 2005 |
| 6612329 |
Locking valve stem and cap apparatus |
Sep. 2, 2003 |
| 6508274 |
Fitting dust plug |
Jan. 21, 2003 |
| 6170529 |
Knock-off plug for plastic pipe |
Jan. 9, 2001 |
| 6032697 |
Cover for standpipes |
Mar. 7, 2000 |
| 5876282 |
Weather cap |
Mar. 2, 1999 |
| 5778934 |
Debris cap |
Jul. 14, 1998 |
| 5687773 |
Exhaust pipe cover and method of covering an exhaust pipe |
Nov. 18, 1997 |
| 5417247 |
Bleed screw cap for hydraulic equipment |
May. 23, 1995 |
| 5337792 |
Protective cover for pipe end |
Aug. 16, 1994 |
| 4932446 |
Coaxial pressure fill fitting and standpipe drain |
Jun. 12, 1990 |
| 4902043 |
Fluid coupling and seal assembly |
Feb. 20, 1990 |
| 4793395 |
Tire shock absorber |
Dec. 27, 1988 |
| 4487241 |
Pumping and tire deflation warning system |
Dec. 11, 1984 |
| 4483371 |
Protective holder for hose tip assembly |
Nov. 20, 1984 |
| 4481977 |
Dust cap for fluid coupling |
Nov. 13, 1984 |
| 4356836 |
Tubeless tire valve stem and cover |
Nov. 2, 1982 |
| 4337814 |
Air valve conduit in the track wall of a tire |
Jul. 6, 1982 |
| 4300597 |
Dust cover assembly for quick disconnect coupling |
Nov. 17, 1981 |
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