P-trap for plumbing drainage systems

Details P-trap for plumbing drainage systems P-trap for plumbing drainage systems

2006-10-31

2006-10-31

Webster, Robin (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

Design Patent

active

D0531285

CLAIM:
The ornamental design for a P-trap for plumbing drainage systems, as shown.

REFERENCES:
patent: 595577 (1897-12-01), Moore
patent: D240929 (1976-08-01), McIlroy
patent: 4031914 (1977-06-01), Neri
patent: 4179762 (1979-12-01), Barnhardt
patent: D295780 (1988-05-01), Thomas
patent: 5267361 (1993-12-01), Lai
patent: D346646 (1994-05-01), Doyle
patent: 5638557 (1997-06-01), Iida
patent: D386569 (1997-11-01), Trueb et al.
patent: 6385799 (2002-05-01), Doyen
patent: 2002/0116759 (2002-08-01), Mantyla
patent: 2003/0163869 (2003-09-01), Bosch

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