Foundation ventilator plug

Details Foundation ventilator plug Foundation ventilator plug

1999-03-19

2001-02-27

Siegel, Mitchell (Department: 2912)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0438300

CLAIM:
The ornamental design for a foundation ventilator plug, as shown and described.

REFERENCES:
patent: D. 380259 (1997-06-01), Artz
patent: 2843035 (1958-07-01), Jacks
patent: 3220079 (1965-11-01), Aggson
patent: 4026082 (1977-05-01), Crofoot
patent: 4159673 (1979-07-01), Weirich
patent: 4469018 (1984-09-01), Taulman
patent: 5460572 (1995-10-01), Waltz et al.

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