Portion of a key blade blank

- Corbin Russwin, Inc.
Description

FIG. 1 is a front view of a first embodiment of our new design of a portion of a key blade blank;

FIG. 2 is a right side view of a first embodiment of our new design of a portion of a key blade blank;

FIG. 3 is a left side view of a first embodiment of our new design of a portion of a key blade blank;

FIG. 4 is a top view of a first embodiment of our new design of a portion of a key blade blank;

FIG. 5 is a bottom view of a first embodiment of our new design of a portion of a key blade blank;

FIG. 6 is a front view of a second embodiment of our new design of a portion of a key blade blank;

FIG. 7 is a right side view of a second embodiment of our new design of a portion of a key blade blank;

FIG. 8 is a left side view of a second embodiment of our new design of a portion of a key blade blank;

FIG. 9 is a top view of a second embodiment of our new design of a portion of a key blade blank; and,

FIG. 10 is a bottom view of a second embodiment of our new design of a portion of a key blade blank.

Referenced Cited
U.S. Patent Documents
D278880 May 21, 1985 Widen
D286854 November 25, 1986 Fane et al.
D328856 August 25, 1992 Best et al.
D335253 May 4, 1993 Eizen
2803959 August 1957 Schlage
3499304 March 1970 Nuajoks
4608842 September 2, 1986 Tietz
4964288 October 23, 1990 Braun et al.
Foreign Patent Documents
88591 February 1960 DKX
Other references
  • Ilco Unican Corp Catalogue No. 60R (1984) Key Blank #A1170B (p. 2). Ilco Unican Corp. Catalogue No. 60R (1984) Key Blank #1054F (p. 13). Emhart Corp. Drawing--Warding Data--Sections 59D, 62D, 76D1.
Patent History
Patent number: D350687
Type: Grant
Filed: Jan 6, 1993
Date of Patent: Sep 20, 1994
Assignee: Corbin Russwin, Inc. (Berlin, CT)
Inventors: Anthony J. Hoffman (Plantsville, CT), Robert E. Kearns (San Francisco, CA)
Primary Examiner: Brian N. Vinson
Law Firm: Darby & Darby
Application Number: 0/3,294
Classifications
Current U.S. Class: D/8347