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Patent
D930840
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Priority
Oct 17 2019
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Filed
Oct 17 2019
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Issued
Sep 14 2021
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Expiry
Sep 14 2036
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Assg.orig
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Entity
unknown
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3
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13
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n/a
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The ornamental design for a hearing enhancement device, as shown and described.
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FIG. 1 is a perspective view of a hearing enhancement device, showing the new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Misiaszek, Stanley E.
Patent |
Priority |
Assignee |
Title |
3658150, |
|
|
|
4771859, |
May 14 1987 |
|
Hearing aid apparatus |
5691515, |
Jan 16 1996 |
OP-D-OP, INC. |
Rearward sound enhancing apparatus |
5965850, |
Jul 10 1997 |
FRASER SOUND SCOOP, INC |
Non-electronic hearing aid |
D244467, |
Sep 11 1975 |
Soundmasters, Inc. |
Sound intensifying receiver |
D286873, |
Feb 29 1984 |
Sony Corporation |
Non-electronic sound amplifier headset or the like |
D310530, |
Sep 21 1988 |
|
Non-electronic sound amplifier |
D322070, |
Oct 02 1989 |
|
Acoustic reflector headset |
D323043, |
Mar 01 1989 |
|
Ear protector |
D376362, |
Jul 18 1995 |
|
Headphone |
D541257, |
Sep 16 2005 |
Koninklijke Philips Electronics N.V. |
Headphone |
D667813, |
Jun 16 2011 |
|
Sound amplifying apparatus with adjustable headband for enhancing the hearing of a user |
GB4022597, |
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|
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