Sash lock
Description
The broken lines showing are for illustrative purposes and form no part of the claimed design.
Claims
The ornamental design for a sash lock, as shown and described.
Referenced Cited
U.S. Patent Documents
| D185254 | May 1959 | Ahlgren |
| 2997323 | August 1961 | Riser |
| 3811718 | May 1974 | Bates |
| D268643 | April 19, 1983 | Anderson |
| D293548 | January 5, 1988 | Bates et al. |
| D295948 | May 31, 1988 | Mandell |
| D302651 | August 8, 1989 | Mosch |
| D418737 | January 11, 2000 | Libby et al. |
| D442058 | May 15, 2001 | Miller et al. |
| 6983963 | January 10, 2006 | Eslick et al. |
| 7017957 | March 28, 2006 | Murphy et al. |
| 20030155777 | August 21, 2003 | Eslick et al. |
Patent History
Patent number: D578865
Type: Grant
Filed: May 10, 2007
Date of Patent: Oct 21, 2008
Assignee: Liberty Hardware Mfg. Corp. (Winston-Salem, NC)
Inventor: Zhukai Zhang (Chicago, IL)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Derrick Holland
Attorney: Edgar A. Zarins
Application Number: 29/286,534
Type: Grant
Filed: May 10, 2007
Date of Patent: Oct 21, 2008
Assignee: Liberty Hardware Mfg. Corp. (Winston-Salem, NC)
Inventor: Zhukai Zhang (Chicago, IL)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Derrick Holland
Attorney: Edgar A. Zarins
Application Number: 29/286,534
Classifications
Current U.S. Class:
D8/337