Helmet
Description
Claims
The ornamental design for a helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
5675843 | October 14, 1997 | Grim et al. |
D426677 | June 13, 2000 | Ho |
D427381 | June 27, 2000 | Ho |
D437092 | January 30, 2001 | Ho |
D453860 | February 19, 2002 | Lu |
D453975 | February 26, 2002 | Ho |
D455869 | April 16, 2002 | Ho |
D456567 | April 30, 2002 | Ho |
D481172 | October 21, 2003 | Ho |
D516751 | March 7, 2006 | Ho |
D516752 | March 7, 2006 | Ho |
D517739 | March 21, 2006 | Ho |
Patent History
Patent number: D550902
Type: Grant
Filed: Sep 16, 2005
Date of Patent: Sep 11, 2007
Inventors: Theo Grepper (Kilchberg), Martin Knopfli (Bolligen)
Primary Examiner: Ruth McInroy
Attorney: Vidas, Arrett & Steinkraus, P.A.
Application Number: 29/238,540
Type: Grant
Filed: Sep 16, 2005
Date of Patent: Sep 11, 2007
Inventors: Theo Grepper (Kilchberg), Martin Knopfli (Bolligen)
Primary Examiner: Ruth McInroy
Attorney: Vidas, Arrett & Steinkraus, P.A.
Application Number: 29/238,540
Classifications
Current U.S. Class:
Cranial (D29/102)