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Patent
D828328
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Priority
Oct 21 2016
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Filed
Oct 21 2016
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Issued
Sep 11 2018
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Expiry
Sep 11 2033
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Assg.orig
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Entity
unknown
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0
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12
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n/a
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The ornamental design for a passive sound proliferation device, substantially as shown and described.
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FIG. 1 is a perspective view of a passive sound proliferation device showing my new design;
FIG. 2 is another perspective view thereof'
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof'
FIG. 6 is a left side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines illustrate environment and forms no part of the claimed design.
Morin, Joseph Dieudonne
Patent |
Priority |
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