Plug lock device

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Description

FIG. 1 is a left hand perspective view for a plug lock device;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right end elevational view thereof; and,

FIG. 7 is a left end elevational view thereof.

The broken line showing of the plug in FIGS. 1 and 2 is included for the purpose of illustrating environmental structure only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
1665095 April 1928 Henry
1818819 August 1931 Seresun
1844916 February 1932 Dykes
1899360 February 1933 Roudebush et al.
1988171 January 1935 Frank et al.
1989823 February 1935 Raabe
2487801 November 1949 Healy, Jr.
5104335 April 14, 1992 Conley
5655924 August 12, 1997 Cross et al.
Patent History
Patent number: D413864
Type: Grant
Filed: Mar 20, 1998
Date of Patent: Sep 14, 1999
Assignee: Alert Safety Lite Products Co., Inc. (Bedford Heights, OH)
Inventors: James D. Kovacik (Brecksville, OH), Paul S. Blanch (Broadview Heights, OH), Stanley E. Grzywna (Elyria, OH)
Primary Examiner: Joel Sincavage
Law Firm: MacMillan, Sobanski & Todd, LLC
Application Number: 0/85,312
Classifications
Current U.S. Class: Element Or Attachment (D13/154)
International Classification: 1303;