|
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 on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 03 2004 | Optical Engineering Company, LLC | (assignment on the face of the patent) | / | |||
Oct 27 2004 | MARTIN, EDWARD L | Optical Engineering Company, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015397 | /0579 | |
Oct 27 2004 | WATKINS, JAMES | Optical Engineering Company, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015397 | /0579 | |
May 18 2009 | Optical Engineering Company, LLC | A C E INTERNATIONAL COMPANY, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 022732 | /0001 | |
Feb 26 2020 | A C E INTERNATIONAL COMPANY, INC | WALTER SURFACE TECHNOLOGIES INCORPORATED | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 052108 | /0132 | |
Feb 26 2020 | WALTER SURFACE TECHNOLOGIES INCORPORATED | ANTARES CAPITAL LP, AS ADMINISTRATIVE AGENT | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 053304 | /0909 |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |