Spring brake
Description
Claims
The ornamental design for a spring brake, as shown and described.
Referenced Cited
U.S. Patent Documents
| 354014 | December 1886 | Easton |
| 1895456 | January 1933 | Farmer |
| 3170586 | February 1965 | Bulgrin |
| 4828337 | May 9, 1989 | Wagner et al. |
| 5031970 | July 16, 1991 | Vogel |
| 5044702 | September 3, 1991 | Beck et al. |
| 5297471 | March 29, 1994 | Boehm et al. |
| 5848827 | December 15, 1998 | Levrai |
| 5881627 | March 16, 1999 | Simon Bacardit |
| D454818 | March 26, 2002 | MacGregor |
| 6405636 | June 18, 2002 | Anderson |
| D533768 | December 19, 2006 | Hsiung |
Patent History
Patent number: D604680
Type: Grant
Filed: Nov 13, 2007
Date of Patent: Nov 24, 2009
Assignee: Metro Bearing & Automotive Limited (N.T.)
Inventor: Lai Yee Chow (N. T.)
Primary Examiner: Robert M Spear
Assistant Examiner: Cynthia Underwood
Application Number: 29/297,555
Type: Grant
Filed: Nov 13, 2007
Date of Patent: Nov 24, 2009
Assignee: Metro Bearing & Automotive Limited (N.T.)
Inventor: Lai Yee Chow (N. T.)
Primary Examiner: Robert M Spear
Assistant Examiner: Cynthia Underwood
Application Number: 29/297,555
Classifications
Current U.S. Class:
Brake Element (D12/180)