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Patent
D658334
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Priority
Nov 05 2010
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Filed
Nov 05 2010
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Issued
Apr 24 2012
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Expiry
Apr 24 2026
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Assg.orig
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Entity
unknown
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24
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45
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n/a
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The ornamental design for a protective air filtration device, as shown and described.
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FIG. 1 is a front view of the protective air filtration device of the present invention;
FIG. 2 is a rear view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof; and,
FIG. 7 is a perspective view thereof.
The portions of the design depicted in broken lines form no part of the claimed design.
Goranov, Konstantin, Milencheva, Albena
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a