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Patent
   D657499
Priority
Jul 08 2010
Filed
Jan 21 2011
Issued
Apr 10 2012
Expiry
Apr 10 2026
Inventors
Parkins, J…
Assg.orig
Red Tail H…
Assg.curr
Red Tail H…
Entity
unknown
Referenced by
11
References
24
Maint.:
n/a
The ornamental design for earplug, as shown and described.

This invention was made with Government support under SBIR contract N68335-09-C-0003, awarded by the US Navy. The government has certain rights in the invention.

FIG. 1 is a perspective view of an earplug showing our new design.

FIG. 2 is a side view thereof.

FIG. 3 is an opposite side view of FIG. 2.

FIG. 4 is another side view thereof.

FIG. 5 is an opposite side view of FIG. 4.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.
INVENTORS:

Parkins, John W., Russell, Douglas M., Fergot, David L., Parkins, David

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
11910145, Dec 21 2018 NURA HOLDINGS PTY LTD Power management of the modular ear-cup and ear-bud
D717958, Mar 30 2014 Eargo, Inc Open ear hearing aid
D735180, Apr 18 2014 SureFire, LLC Acoustic coupler
D889754, Sep 01 2017 3M Innovative Properties Company Hearing protector
D894160, Oct 19 2018 Ear Labs AB Ear plug
D895901, Sep 01 2017 3M Innovative Properties Company Hearing protector
D897318, Sep 04 2018 Gentex Corporation Wireless earbud
D920288, Sep 04 2019 SKULLCANDY, INC Earbud headset
D941807, May 15 2020 Yibai Science & Technology (Shenzhen) Co., Ltd. Earphone
D972146, May 19 2021 Ear Labs AB Ear plug
D976872, May 14 2021 Earphone
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2446707,
3047089,
3125646,
6208740, Feb 28 1997 Stereophonic magnetic induction sound system
6241042, Mar 14 2000 3M Innovative Properties Company Hearing protective device
7697706, Nov 03 2003 3M Innovative Properties Company Low sound attenuating hearing protection device
7743771, Nov 09 2005 3M Innovative Properties Company Earplug with articulating stem and locking features
7793662, Feb 14 2005 Earplug
7967015, Mar 21 2006 HONEYWELL SAFETY PRODUCTS USA, INC High resilience flanged earplug
D245202, Sep 03 1975 Ear protection plug set
D276855, Aug 04 1982 Cabot Safety Intermediate Corporation Earmuff cup or similar article
D405880, Sep 25 1995 Scientific-Atlanta, Inc Ear plug assembly
D494956, Nov 26 2003 Shure Incorporated Earphone
D511381, Jan 16 2004 Ear plug
D516058, Mar 09 2005 FUTURE SONICS, INC Earphone
D519103, Nov 09 2004 Shure Incorporated Earphone
D550200, Jul 24 2006 Etymotic Research, Inc. Earphone
D567217, Aug 18 2006 Star Micronics Co., Ltd. Earphone
D578637, Nov 09 2005 3M Innovative Properties Company Earplug
D578638, Nov 09 2005 3M Innovative Properties Company Earplug
D578639, Nov 09 2005 3M Innovative Properties Company Earplug stem
D586778, May 09 2008 Cotron Corporation Earphone
D598894, Apr 24 2008 Star Micronics Co., Ltd. Earphone
D606972, Mar 12 2009 SJS & Sons, Inc.; SJS & SONS, INC Audio headset
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 11 2011FERGOT, DAVID L Red Tail Hawk CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0256840241 pdf
Jan 11 2011RUSSELL, DOUGLAS M Red Tail Hawk CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0256840241 pdf
Jan 18 2011PARKINS, JOHN W Red Tail Hawk CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0256840241 pdf
Jan 18 2011PARKINS, DAVIDRed Tail Hawk CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0256840241 pdf
Jan 21 2011Red Tail Hawk Corporation(assignment on the face of the patent)
Aug 24 2012RED TALL HAWK CORPORATIONNAVY, DEPARTMENT OF THECONFIRMATORY LICENSE SEE DOCUMENT FOR DETAILS 0375780080 pdf
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