PTO Wrapper PDF
Dossier Espace Google
Patent
   D321748
Priority
Nov 21 1988
Filed
Nov 21 1988
Issued
Nov 19 1991
Expiry
Nov 19 2005
Inventors
Brito, Ral…
Assg.orig
Assg.curr
Entity
unknown
Referenced by
4
References
18
Maint.:
n/a
The ornamental design for an air gap anti-siphon valve, as shown and described.

FIG. 1 is a perspective view taken from front and side of an air gap anti-siphon valve, showing my new design; and

FIG. 2 is a perspective view taken from the rear and side thereof.
INVENTORS:

Brito, Ralph

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D328781, Jul 20 1990 US Tap, Inc. Combined vacuum breaker for a bidet and mounting bracket
D368300, May 08 1995 Spinco Metal Products, Inc.; SPINCO METAL PRODUCTS, INC Distributor valve body
D427286, May 25 1999 Air admittance valve
D800872, Jul 07 2016 TISS Limited In-line anti-siphon device
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2217132,
2259984,
2284051,
2288247,
2598002,
2738798,
2997054,
3086543,
3125114,
3158169,
3346001,
D246377, Feb 19 1976 JANDY INDUSTRIES, INC , A CORP OF CA Flow control valve
D262969, Aug 16 1979 Lucas Industries Limited Fuel injection nozzle
D263163, Apr 19 1978 Outlet fitting for a pipe
D269633, Sep 08 1980 WILLINGER BROS , INC Check valve
D277599, May 17 1982 U S TAP, INC Vacuum breaker assembly for bidet
D278740, Nov 29 1982 Kohler Co. Vacuum breaker valve
D294285, Oct 24 1985 Water closet valve
ASSIGNMENT RECORDS    Assignment records on the USPTO
Executed onAssignorAssigneeConveyanceFrameReelDoc
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule