Patent
   D931437
Priority
Sep 05 2020
Filed
Sep 05 2020
Issued
Sep 21 2021
Expiry
Sep 21 2036
Assg.orig
Entity
unknown
9
13
n/a
The ornamental design for double layer soundproof earplug, as shown and described.

FIG. 1 is a front, right side, top perspective view of a double layer soundproof earplug showing my new design;

FIG. 2 is a front, left side, bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict a portion of the double layer soundproof earplug that form no part of the claimed design.

Yuan, Jinniu

Patent Priority Assignee Title
D943087, Jun 15 2020 Set of earplugs
D961757, Apr 08 2021 Ear plug
D968372, May 24 2021 Shenzhen Taipuda Technology Co., Ltd. Earphone
D974542, Aug 19 2021 Shenzhen Apwill Electronic Co., Ltd. Earplug
ER2559,
ER6035,
ER7070,
ER8995,
ER9999,
Patent Priority Assignee Title
D330761, Sep 21 1990 Cabot Safety Intermediate Corporation Earplug
D414260, Nov 10 1997 CK European Limited Earplug
D434139, Sep 17 1999 3M Innovative Properties Company Earplug
D436164, Sep 17 1999 3M Innovative Properties Company Earplug
D492765, Jan 18 2002 3M Innovative Properties Company Earplug
D492766, Jan 18 2002 3M Innovative Properties Company Earplug
D493219, Jan 18 2002 3M Innovative Properties Company Earplug
D496722, Aug 01 2003 3M Innovative Properties Company Stemmed earplug
D559382, Mar 26 2007 R2 Development, LLC Earplug
D560792, Feb 20 2004 3M Innovative Properties Company Flanged earplug
D618333, May 21 2009 Moldex-Metric, Inc Earplug insert for dual mode operation
D624999, Mar 11 2010 Moldex-Metric, Inc.; Moldex-Metric, Inc Earplug
D892302, Sep 29 2018 JIANGYIN SIAN PLASTIC PROTECH CO., LTD Ear plug
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Sep 04 2020YUAN, JINNIUSHENZHEN YUNDE TECHNOLOGY CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0537010004 pdf
Sep 05 2020SHENZHEN YUNDE TECHNOLOGY CO., LTD.(assignment on the face of the patent)
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