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Patent
   D524937
Priority
Apr 23 2004
Filed
Apr 23 2004
Issued
Jul 11 2006
Expiry
Jul 11 2020
Inventors
Doty, Marc
Assg.orig
Cabot Safe…
Assg.curr
3M Innovat…
Entity
unknown
Referenced by
11
References
4
Maint.:
n/a
The ornamental design for a hearing protection device, as shown and described.

FIG. 1 is a first perspective view of our new hearing protection device;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view.
INVENTORS:

Doty, Marc, Knauer, Richard

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
10660797, May 20 2014 3M Innovative Properties Company Push-to-fit earplug having an array of cavities
7264081, Jun 10 2005 UVEX ARBEITSSCHUTZ GMBH Hearing protection earplug
8061472, Jun 03 2009 HONEYWELL SAFETY PRODUCTS USA, INC Non-roll foam eartip
D636484, Oct 22 2009 HONEYWELL SAFETY PRODUCTS USA, INC Earplug
D654163, Oct 22 2009 Honeywell International Inc. Earplug
D757925, May 20 2014 3M Innovative Properties Company Earplug tip
D759802, May 20 2014 3M Innovative Properties Company Earplug tip
D798434, May 20 2014 3M Innovative Properties Company Earplug
D798435, May 20 2014 3M Innovative Properties Company Earplug
ER6035,
ER7070,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
5044463, Nov 30 1989 Cabot Safety Intermediate Corporation Molded foam earplug and method for making same
5668354, Nov 02 1995 Cabot Safety Intermediate Corporation Earplug assembly and eyewear assembly
D242743, Aug 28 1975 Ear plug
D307325, Nov 05 1987 Cabot Safety Intermediate Corporation Earplug or similar article
ASSIGNMENT RECORDS    Assignment records on the USPTO
////////////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 23 2004Cabot Safety Intermediate Corporation(assignment on the face of the patent)
May 11 2004DOTY, MARCCabot Safety Intermediate CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0158870935 pdf
May 11 2004KNAUER, RICHARDCabot Safety Intermediate CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0158870935 pdf
Mar 24 2006Cabot Safety Intermediate CorporationBANK OF AMERICA, N A , AS FIRST LIEN COLLATERAL AGENTSECURITY AGREEMENT0174350721 pdf
Mar 24 2006Cabot Safety Intermediate CorporationBANK OF AMERICA, N A , AS SECOND LIEN COLLATERAL AGENTSECURITY AGREEMENT0174350764 pdf
Jun 01 2007BANK OF AMERICA, N A , AS FIRST LIEN COLLATERAL AGENTCabot Safety Intermediate CorporationRELEASE OF FIRST LIEN SECURITY INTEREST AT REEL FRAME NO 17435 07210195110914 pdf
Jun 01 2007Cabot Safety Intermediate CorporationBANK OF AMERICA, N A , AS FIRST LIEN COLLATERAL AGENTGRANT OF FIRST LIEN SECURITY INTEREST IN UNITED STATES PATENTS AND TRADEMARKS0195200001 pdf
Apr 01 2008BANK OF AMERICA, N A Cabot Safety Intermediate CorporationRELEASE OF FIRST LIEN SECURITY INTEREST FILED AT REEL FRAME NO 19520 00010208280647 pdf
Apr 01 2008BANK OF AMERICA, N A Cabot Safety Intermediate CorporationCORRECTION OF TYPOGRAPHICAL ERRORS OF PATENT NUMBERS LISTED IN COVER SHEET RECORDED AT REEL FRAME NO 020733 04400207830537 pdf
Apr 01 2008BANK OF AMERICA, N A Cabot Safety Intermediate CorporationRELEASE OF SECOND LIEN SECURITY INTEREST AT REEL FRAME NO 17435 07640207330510 pdf
Sep 26 2008Cabot Safety Intermediate CorporationCabot Safety Intermediate LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0219760611 pdf
Dec 08 2008Cabot Safety Intermediate LLC3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0220430189 pdf
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