Patent
   D520684
Priority
Sep 03 2004
Filed
Sep 03 2004
Issued
May 09 2006
Expiry
May 09 2020
Assg.orig
Entity
unknown
8
12
n/a
We claim the ornamental design for a protective helmet, as shown and described.

FIG. 1 is a front perspective view of a protective helmet showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Watkins, James, Martin, Edward L.

Patent Priority Assignee Title
8534279, Apr 04 2008 3M Innovative Properties Company Respirator system including convertible head covering member
D553802, Oct 20 2006 OTOS TECH CO , LTD Welding mask
D586051, May 15 2008 WALTER SURFACE TECHNOLOGIES INCORPORATED Protective helmet
D590547, Apr 03 2008 3 INNOVATIVE PROPERTIES COMPANY Headgear article having recessed portions
D597710, Apr 03 2008 3M Innovative Properties Company Headgear article having recessed portions
D624705, Aug 13 2009 MENTA PATENT PARTNERS, LLC; MENTA, GREGORY S Face protector
D857302, Jun 26 2017 NINGBO GEOSTAR PHOTOELECTRIC TECHNOLOGY CO , LTD Welders' mask
D858000, May 22 2018 Lighted welding helmet
Patent Priority Assignee Title
6185739, Aug 12 1997 CIGWELD PTY LTD Light shielding helmet system
D310276, Jul 21 1988 Optrel AG Welding mask
D310432, Mar 18 1988 JPCA, INC Welding helmet
D365666, Mar 18 1993 Optrel AG Welding helmet
D393933, Apr 10 1996 Otos Optical Co., Ltd. Welding mask
D394732, Apr 10 1996 Otos Optical Co. Ltd. Welding mask
D398421, Dec 12 1995 3M Innovative Properties Company Protective helmet
D419727, Mar 13 1998 CIGWELD PTY LTD Light shielding helmet
D443394, Feb 17 2000 WALTER SURFACE TECHNOLOGIES INCORPORATED Safety helmet
D481832, Oct 04 2002 OTOS OPTICAL CO , LTD Welding mask
D482502, May 08 2002 Otos Optical Co., Ltd. Welding mask
D482503, Oct 04 2002 OTOS OPTICAL CO , LTD Welding mask
//////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 03 2004Optical Engineering Company, LLC(assignment on the face of the patent)
Oct 27 2004MARTIN, EDWARD L Optical Engineering Company, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0153970579 pdf
Oct 27 2004WATKINS, JAMESOptical Engineering Company, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0153970579 pdf
May 18 2009Optical Engineering Company, LLCA C E INTERNATIONAL COMPANY, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0227320001 pdf
Feb 26 2020A C E INTERNATIONAL COMPANY, INC WALTER SURFACE TECHNOLOGIES INCORPORATEDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0521080132 pdf
Feb 26 2020WALTER SURFACE TECHNOLOGIES INCORPORATEDANTARES CAPITAL LP, AS ADMINISTRATIVE AGENTSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0533040909 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule