Roof exhaust vent

Details Roof exhaust vent Roof exhaust vent

2009-01-27

2010-06-22

Lichtenstein, Lisa P (Department: 2917)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0618331

CLAIM:
The ornamental design for a roof exhaust vent, as shown and described.

REFERENCES:
patent: D221854 (1971-09-01), Dowdell, Jr. et al.
patent: 6183360 (2001-02-01), Luter et al.
patent: D602579 (2009-10-01), Stone

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