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Patent
D979531
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Priority
Nov 04 2020
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Filed
Apr 15 2021
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Issued
Feb 28 2023
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Expiry
Feb 28 2038
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Assg.orig
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Entity
unknown
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0
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8
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n/a
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The ornamental design for an acoustic amplifier, as shown and described.
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FIG. 1 is a left, front, and top perspective view of an acoustic amplifier;
FIG. 2 is front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a right side elevational view thereof.
The broken lines shown in the drawings illustrate portions of the acoustic amplifier that form no part of the claimed design.
Choe, Jeong-ju
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