Check valve

The ornamental design for a check valve, as shown and described.

FIG. 1 is a side view of a check valve showing my new design; the design being radially symmetrical, all side views are the same;

FIG. 2 is a lower perspective view thereof;

FIG. 3 is an upper perspective view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view.

Patent	Priority	Assignee	Title
9173430,	May 06 2013		Carbonating beverages and check valve useful therein
D745637,	Mar 22 2013	WD RACING OY	Valve disk
D750748,	Mar 22 2013	WD RACING OY	Air venting valve
D750749,	Mar 22 2013	WD RACING OY	Valve pin
D750750,	Mar 22 2013	WD RACING OY	Valve disk
D750751,	Mar 22 2013	WD RACING OY	Valve disk
D750752,	Mar 22 2013	WD RACING OY	Valve disk
D750753,	Mar 22 2013	WD RACING OY	Valve disk
D775313,	Mar 22 2013	WD RACING OY	Valve disk
D871544,	Mar 30 2017	COPELAND COMFORT CONTROL LP	Check valve
D872232,	Mar 30 2017	COPELAND COMFORT CONTROL LP	Check valve
D872233,	Mar 30 2017	COPELAND COMFORT CONTROL LP	Check valve

Patent	Priority	Assignee	Title
2783324,
4607659,	Aug 12 1985	GEORGE S COLE & ASSOCIATES, INC	Valve with resilient tubes having constricted portions
4823969,	Feb 01 1988		Carbonation cap
4838324,	Sep 29 1987	Judith, Brock	Beverage container pressurizer
5282495,	Dec 07 1992		Beverage container pressurizing system
5586588,	Dec 21 1994		Apparatus and method for pressurizing and drafting liquid contained within food-grade containers
5792391,	Dec 05 1996	IMI Cornelius Inc.	Carbonator
5921418,	Sep 08 1997		Valve cap for two liter bottle
8191734,	Jan 11 2006		Method and apparatus for gasifying and/or maintaining gasification in liquids
8323713,	Jul 19 2009	Corey M., Selman	Home carbonation method
20060186076,
102190,
221076,
222540,
D269633,	Sep 08 1980	WILLINGER BROS , INC	Check valve
D368299,	Nov 29 1994	LIEPONIS, PETER	Probe check valve
D370963,	Jul 28 1995	DAANSEN U S A INC	Check valve for dispenser pump
D615161,	Jun 14 2006	SAINT-GOBAIN ABRASIVES, INC; SAINT-GOBAIN ABRASIFS	Reservoir line
D644717,	Apr 01 2009	LARKIN & SHOUSHANI SOLUTIONS PTY LTD	Plumbing fitting

Executed on

Assignor

Assignee

Conveyance

Frame

Reel

Doc

n/a

Date	Maintenance Fee Events

n/a

Date	Maintenance Schedule