Dual grip barbell
Description
Claims
The ornamental design for a dual grip barbell, as shown and described.
Referenced Cited
U.S. Patent Documents
| 3384370 | May 1968 | Bailey et al. |
| 4029312 | June 14, 1977 | Wright |
| 4461473 | July 24, 1984 | Cole |
| 4487413 | December 11, 1984 | Fall |
| 4618143 | October 21, 1986 | Twardosz |
| 4618183 | October 21, 1986 | Bauer |
| 4629184 | December 16, 1986 | Selkee |
| 4674987 | June 23, 1987 | Sober |
| 4690400 | September 1, 1987 | Metz |
| 4743018 | May 10, 1988 | Eckler |
| 4822035 | April 18, 1989 | Jennings et al. |
| D301510 | June 6, 1989 | Orak |
| D303697 | September 26, 1989 | Pearson |
| RE33218 | May 22, 1990 | Twardosz |
| 4984784 | January 15, 1991 | Bailey |
| 5024434 | June 18, 1991 | Smith |
| 5080349 | January 14, 1992 | Vittone |
| D328112 | July 21, 1992 | Maddix et al. |
| 5211616 | May 18, 1993 | Riley, Jr. |
| 5334113 | August 2, 1994 | Roepke |
| 5334133 | August 2, 1994 | Carroll |
| 5407405 | April 18, 1995 | Oren |
| 5580336 | December 3, 1996 | Coallier |
| 5716305 | February 10, 1998 | Selsam |
| 5725461 | March 10, 1998 | Bogard, II |
| 5735779 | April 7, 1998 | Lay |
| 6022300 | February 8, 2000 | Hightower |
| 6217504 | April 17, 2001 | Phillips |
| 6450928 | September 17, 2002 | Larkins, Jr. |
| 6461282 | October 8, 2002 | Fenelon |
| D480438 | October 7, 2003 | Walkow |
| 6656108 | December 2, 2003 | Spalding, Jr. et al. |
| 6971974 | December 6, 2005 | Bowman et al. |
| 7014598 | March 21, 2006 | Fenelon et al. |
| D520575 | May 9, 2006 | Diakonov et al. |
| 7094182 | August 22, 2006 | Holten |
| 7094186 | August 22, 2006 | Diakonov et al. |
| D532465 | November 21, 2006 | Mills et al. |
| D535336 | January 16, 2007 | Diakonov et al. |
| 7238147 | July 3, 2007 | Mills et al. |
| 1333005 | January 2011 | Warner |
| 7862486 | January 4, 2011 | Watson |
| 7878952 | February 1, 2011 | Fenelon |
| D647580 | October 25, 2011 | Cen |
| D658729 | May 1, 2012 | McLoughney |
| D662558 | June 26, 2012 | Lovegrove et al. |
| 20020128127 | September 12, 2002 | Chen |
| 20030130096 | July 10, 2003 | LaCroce |
| 20050003931 | January 6, 2005 | Mills et al. |
| 20050202942 | September 15, 2005 | De Lano |
| 20080176723 | July 24, 2008 | Johnson |
| 20100323854 | December 23, 2010 | Brandenburg |
Patent History
Patent number: D671996
Type: Grant
Filed: Nov 16, 2011
Date of Patent: Dec 4, 2012
Inventor: Norbert T. Wierszewski (Dearborn, MI)
Primary Examiner: Susan E Krakower
Attorney: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
Application Number: 29/406,552
Type: Grant
Filed: Nov 16, 2011
Date of Patent: Dec 4, 2012
Inventor: Norbert T. Wierszewski (Dearborn, MI)
Primary Examiner: Susan E Krakower
Attorney: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
Application Number: 29/406,552
Classifications
Current U.S. Class:
Weight (D21/680);
Barbell Or Dumbbell (D21/681);
For Hand, Wrist, Or Finger Only (D21/684)