Downspout extension

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting

Design Patent

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Design Patent

active

D0514670

CLAIM:
An ornamental design for a downspout extension, as shown.

REFERENCES:
patent: 3076669 (1963-02-01), Schlein
patent: 5673519 (1997-10-01), McCaughan
patent: 5813701 (1998-09-01), Noble
patent: 5915735 (1999-06-01), Noble
patent: 6041825 (2000-03-01), Smith et al.
patent: 6223777 (2001-05-01), Smith et al.

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