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Class Information
Number: 220/502
Name: Receptacles > Compartmented container > Intercommunicable compartments > With externally operable means for establishing and blocking communication
Description: Receptacle having means controllable from outside the receptacle which alternately permits and prevents content movement from one compartment to another.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7413074 |
Two compartment bottle with mixing device |
Aug. 19, 2008 |
| 7331478 |
Dual chamber nursery bottle |
Feb. 19, 2008 |
| 7028687 |
Escape hood |
Apr. 18, 2006 |
| 6920991 |
Multi-chambered container and two-piece adapter |
Jul. 26, 2005 |
| 6896920 |
Packaging for beverage containing gas in solution |
May. 24, 2005 |
| 6736969 |
Paint bucket strainer |
May. 18, 2004 |
| 6551638 |
Method of packaging a beverage containing gas in solution and a beverage package |
Apr. 22, 2003 |
| 6412526 |
Device for maintaining separate ingredients in liquid food products |
Jul. 2, 2002 |
| 6263923 |
Device for maintaining separate ingredients in liquid food products |
Jul. 24, 2001 |
| 6230764 |
Ice cream cone holder and drip collector device |
May. 15, 2001 |
| 6186356 |
Closure assembly for lined tanks, and vehicles equipped with the same |
Feb. 13, 2001 |
| 6027392 |
Amusement device for collecting and storing secrets |
Feb. 22, 2000 |
| 5873462 |
Pen needle dispenser |
Feb. 23, 1999 |
| 5823380 |
Thermal combination cup and fluid container receptacle |
Oct. 20, 1998 |
| 5718509 |
Materials dispersion apparatus with relatively slidable blocks |
Feb. 17, 1998 |
| 5676244 |
Food container |
Oct. 14, 1997 |
| 5655680 |
Odorless container |
Aug. 12, 1997 |
| 5535913 |
Odorless container |
Jul. 16, 1996 |
| 5525475 |
Diffusion through a membrane assaying apparatus and method |
Jun. 11, 1996 |
| 5427271 |
Canteen with a spring biased valve actuated by a push button |
Jun. 27, 1995 |
| 5406995 |
Container assembly for mixing liquids in predetermined ratios |
Apr. 18, 1995 |
| 5402907 |
Instantly assembled and mixed beverage vessel |
Apr. 4, 1995 |
| 5271508 |
Serving dish for stemmed grapes |
Dec. 21, 1993 |
| 5256160 |
Medical device valving mechanism |
Oct. 26, 1993 |
| 5215214 |
Multi-compartment liquid storage container |
Jun. 1, 1993 |
| 5165327 |
Coffeemaker |
Nov. 24, 1992 |
| 5122025 |
Multiple compartment body for waste products and the like |
Jun. 16, 1992 |
| 5105998 |
Paint reservoir for spraying apparatus |
Apr. 21, 1992 |
| 5008083 |
Apparatus for centrifugal separation of coal particles |
Apr. 16, 1991 |
| 4953732 |
Waste material collecting bin |
Sep. 4, 1990 |
| 4944419 |
Compartmentalized refuse container |
Jul. 31, 1990 |
| 4903869 |
Brush storage and fluid dispensing device |
Feb. 27, 1990 |
| 4848570 |
Sharps disposal system |
Jul. 18, 1989 |
| 4819833 |
Measuring, metering, and mixing can for gasoline and oil |
Apr. 11, 1989 |
| 4810651 |
Blood culture assembly with an externally actuated valve |
Mar. 7, 1989 |
| 4809860 |
Aspiration container assembly for collecting follicular fluids |
Mar. 7, 1989 |
| 4775070 |
System for preventing fluid surges in fluid transport vehicles |
Oct. 4, 1988 |
| 4739894 |
Container assembly for garbage |
Apr. 26, 1988 |
| 4721393 |
Ratio Mix container |
Jan. 26, 1988 |
| 4714168 |
Container for disposable expended medical supplies |
Dec. 22, 1987 |
| 4691821 |
Receptacle with at least two chambers for accommodating liquids and pulverized substance, especially coffee powder, milk and/or sugar |
Sep. 8, 1987 |
| 4616683 |
Particle-free dockable interface for integrated circuit processing |
Oct. 14, 1986 |
| 4588004 |
Blender cup with pivotable measuring device mounted therein |
May. 13, 1986 |
| 4576118 |
Pet feeding bowl |
Mar. 18, 1986 |
| 4552280 |
Containers for waste products |
Nov. 12, 1985 |
| 4532970 |
Particle-free dockable interface for integrated circuit processing |
Aug. 6, 1985 |
| 4387998 |
Device for mixing and distributing a two-constituent product |
Jun. 14, 1983 |
| 4286724 |
Fluid tank arrangement with closure |
Sep. 1, 1981 |
| 4274454 |
Method and apparatus for sealing containers |
Jun. 23, 1981 |
| 4207032 |
Gas-fired cigarette lighter |
Jun. 10, 1980 |
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