Mechanical carpenter's pencil

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Description

FIG. 1 is an elevational view of a mechanical carpenter's pencil according to the present design;

FIG. 2 is a side elevational view of a mechanical carpenter's pencil wherein both side views are identical;

FIG. 3 is a plan view of the mechanical carpenter's pencil shown in FIG. 1; and,

FIG. 4 is a bottom view of the mechanical carpenter's pencil shown in FIG. 1.

Referenced Cited
U.S. Patent Documents
D232267 July 1974 Zepell
D238359 January 1976 Zepell
D252690 August 21, 1979 Wong
D263317 March 9, 1982 Swensson
D322282 December 10, 1991 Mishima
D344760 March 1, 1994 Monzyk
Other references
  • Gift and Art Buyer, May 1963, p. 110 see pen upper left.
Patent History
Patent number: D389519
Type: Grant
Filed: Jul 3, 1996
Date of Patent: Jan 20, 1998
Inventor: J. David Duford (Ronan, MT)
Primary Examiner: Martie Thompson
Attorney: Richard C. Conover
Application Number: 0/56,635
Classifications
Current U.S. Class: Longitudinal Striation (D19/49); Diagonal Striation (D19/50); Elongated (D19/45)
International Classification: 1906;