Guard plate for a sash lock

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Description

FIG. 1 is a view in perspective of a guard plate for a sash lock showing my new design,

FIG. 2 is a top plan view thereof,

FIG. 3 is an end elevational view thereof, and,

FIG. 4 is a front elevational view thereof.

Referenced Cited
U.S. Patent Documents
3405962 October 1968 Sushan
Foreign Patent Documents
240,706 October 1925 GBX
Patent History
Patent number: D249018
Type: Grant
Filed: Aug 25, 1977
Date of Patent: Aug 22, 1978
Inventor: Michael Costello (East Boston, MA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: James M. Gandy
Attorney: Gerald Altman
Application Number: 5/827,818
Classifications
Current U.S. Class: D/8343
International Classification: D0807;