Plumbing adaptor for air admittance valve

Details Plumbing adaptor for air admittance valve Plumbing adaptor for air admittance valve

2006-06-06

2006-06-06

Simmons, Ian (Department: 2916)

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Design Patent

active

D0522616

CLAIM:
The ornamental design for a plumbing adaptor for air admittance valve, as shown and described.

REFERENCES:
patent: 2121558 (1938-06-01), Coe et al.
patent: D343889 (1994-02-01), Stonecypher
patent: D395485 (1998-06-01), Deaso, Sr.
patent: D431634 (2000-10-01), Mantz
patent: D454940 (2002-03-01), Hoenig
patent: D470577 (2003-02-01), Knight et al.
RectorSeal Air Admittance Valves literature, 2 pages, date unknown.

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