T-shaped ground jaw
Description
Claims
The ornamental design for a T-shaped ground jaw, as shown and described.
Referenced Cited
U.S. Patent Documents
| 3932277 | January 13, 1976 | McDermott et al. |
| 4186292 | January 29, 1980 | Acker |
| 4490598 | December 25, 1984 | Minney et al. |
| 4496819 | January 29, 1985 | Acker et al. |
| D280515 | September 10, 1985 | Minney et al. |
| D340730 | October 26, 1993 | Myers |
| D385894 | November 4, 1997 | Linner |
| D494608 | August 17, 2004 | Wright |
| 6784407 | August 31, 2004 | Wright et al. |
| D502475 | March 1, 2005 | Wright et al. |
| D502476 | March 1, 2005 | Wright et al. |
| 7211776 | May 1, 2007 | Jensen |
| 20040166591 | August 26, 2004 | Niston |
Patent History
Patent number: D550734
Type: Grant
Filed: Jan 5, 2007
Date of Patent: Sep 11, 2007
Assignee: Engineering & Research Associates, Inc. (Tucson, AZ)
Inventor: Douglas F. Wright (Tucson, AZ)
Primary Examiner: Antoine D. Davis
Assistant Examiner: Patricia Palasik
Attorney: Cahill, von Hellens & Glazer P.L.C.
Application Number: 29/275,753
Type: Grant
Filed: Jan 5, 2007
Date of Patent: Sep 11, 2007
Assignee: Engineering & Research Associates, Inc. (Tucson, AZ)
Inventor: Douglas F. Wright (Tucson, AZ)
Primary Examiner: Antoine D. Davis
Assistant Examiner: Patricia Palasik
Attorney: Cahill, von Hellens & Glazer P.L.C.
Application Number: 29/275,753
Classifications
Current U.S. Class:
Vacuum Or Heat Seal (D15/146)