Electric chisel

- Ryobi North America
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of the electric chisel;

FIG. 2 is a right side elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D254048 January 29, 1980 Hauenstein
D291581 August 25, 1987 Adams
D308622 June 19, 1990 Fushiya et al.
D310160 August 28, 1990 Patel
D310470 September 11, 1990 Tohdoh
D320727 October 15, 1991 Fushiya et al.
D333077 February 9, 1993 Mikiya
D336729 June 22, 1993 Kishi
3049803 August 1962 Danger
3832776 September 1974 Sawyer
3935909 February 3, 1976 Mabuchi et al.
4644952 February 24, 1987 Patipa et al.
5042592 August 27, 1991 Fisher
5165488 November 24, 1992 Liu
5275607 January 4, 1994 Lo et al.
Other references
  • Harbor Freight Industrial Commerical Division "Tools For The Professional" catalog (Summer, 1996) admitted prior art.
Patent History
Patent number: D374159
Type: Grant
Filed: Jan 17, 1995
Date of Patent: Oct 1, 1996
Assignee: Ryobi North America (Easley, SC)
Inventor: Chi-kin Chiang (Anderson, SC)
Primary Examiner: B. J. Bullock
Assistant Examiner: Robert M. Spear
Law Firm: Brooks & Kushman P.C.
Application Number: 0/33,609
Classifications
Current U.S. Class: D 8/61; D8/62