Chalk

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Description

FIG. 1 is a perspective view of chalk showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a front elevational view;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D67193 May 1925 Epstein
D113876 March 1939 Moure
D220297 March 1971 Tarmu
D269444 June 21, 1983 Medebach
D269723 July 12, 1983 Tovey
D284980 August 5, 1986 Yoshida
D306177 February 20, 1990 Park
D318293 July 16, 1991 Flowers
D351620 October 18, 1994 Chung
2430681 November 1947 Johnson
4936585 June 26, 1990 Looney et al.
Foreign Patent Documents
566899 May 1958 BEX
Other references
  • Pentech International, Inc., photos of sidewalk chalk on sale prior to Feb. 8, 1994.
Patent History
Patent number: D367672
Type: Grant
Filed: Feb 8, 1995
Date of Patent: Mar 5, 1996
Assignee: Walbuck Crayon Company (Wilmington, MA)
Inventor: John J. Hahn (N. Reading, MA)
Primary Examiner: Martie Thompson
Law Firm: Bromberg & Sunstein
Application Number: 0/34,607