Protective helmet
Latest Optical Engineering Company, LLC Patents:
Description
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.
Claims
We claim the ornamental design for a protective helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
D310276 | August 28, 1990 | Fuerthbauer et al. |
D310432 | September 4, 1990 | Boochard |
D365666 | December 26, 1995 | Gumpp |
D393933 | April 28, 1998 | Huh |
D394732 | May 26, 1998 | Huh |
D398421 | September 15, 1998 | Crafoord et al. |
D419727 | January 25, 2000 | Verkic et al. |
6185739 | February 13, 2001 | Verkic et al. |
D443394 | June 5, 2001 | Martin et al. |
D481832 | November 4, 2003 | Huh |
D482502 | November 18, 2003 | Huh |
D482503 | November 18, 2003 | Huh |
Patent History
Patent number: D520684
Type: Grant
Filed: Sep 3, 2004
Date of Patent: May 9, 2006
Assignee: Optical Engineering Company, LLC (Taunton, MA)
Inventors: Edward L. Martin (Sharon, MA), James Watkins (Taunton, MA)
Primary Examiner: Ruth McInroy
Attorney: Pearson & Pearson, LLP
Application Number: 29/212,629
Type: Grant
Filed: Sep 3, 2004
Date of Patent: May 9, 2006
Assignee: Optical Engineering Company, LLC (Taunton, MA)
Inventors: Edward L. Martin (Sharon, MA), James Watkins (Taunton, MA)
Primary Examiner: Ruth McInroy
Attorney: Pearson & Pearson, LLP
Application Number: 29/212,629
Classifications
Current U.S. Class:
Including Transparent Eye Shield (e.g., Welder's Mask, Glare Shield) (D29/110)