Teardrop shaped diffuser ring

Details Teardrop shaped diffuser ring Teardrop shaped diffuser ring

2011-03-08

2011-03-08

Lichtenstein, Lisa P (Department: 2917)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0633999

CLAIM:
We claim the ornamental design for a teardrop shaped diffuser ring, as shown and described.

REFERENCES:
patent: 1796293 (1931-03-01), Lanz
patent: 1871001 (1932-08-01), Lanz
patent: D206973 (1967-02-01), De Lisio
patent: D317819 (1991-06-01), Sello
patent: D331102 (1992-11-01), Rademaker
patent: D598532 (2009-08-01), Dyson et al.
patent: D602143 (2009-10-01), Gammack et al.
patent: D602144 (2009-10-01), Dyson et al.
patent: D605748 (2009-12-01), Gammack et al.

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