Hammer drill

Cheung , et al. June 15, 2

Patent Grant D491438

U.S. patent number D491,438 [Application Number D/188,035] was granted by the patent office on 2004-06-15 for hammer drill. This patent grant is currently assigned to One World Technologies, Limited. Invention is credited to Benson Chun Kit Cheung, Daniel Alex Chunn, Thomas Kam Kee Wong.


United States Patent D491,438
Cheung ,   et al. June 15, 2004
**Please see images for: ( Certificate of Correction ) **

Hammer drill

Claims

The ornamental design for a hammer drill, as shown and described.
Inventors: Cheung; Benson Chun Kit (Hong Kong, CN), Chunn; Daniel Alex (Hong Kong, CN), Wong; Thomas Kam Kee (Kowloon, HK)
Assignee: One World Technologies, Limited (Hamilton, BM)
Appl. No.: D/188,035
Filed: August 12, 2003

Current U.S. Class: D8/68
Current International Class: 0801
Field of Search: ;408/20,124,125,234,241R ;451/358 ;D8/14.1,61,62,63,64,65,66,67,68,69,70 ;81/57.11,429,464,465,466,469,489 ;173/13,169,178,213,217 ;227/8,114,120,130,136,142 ;310/50

References Cited [Referenced By]

U.S. Patent Documents
D279862 July 1985 Sato et al.
D279957 August 1985 Akazaw et al.
D280797 October 1985 Sakamoto et al.
4689534 August 1987 Gerber et al.
D310936 October 1990 Saito et al.
D320918 October 1991 Mochida
5056607 October 1991 Sanders
D332208 January 1993 Sakamoto et al.
D339727 September 1993 Kikuchi
5671815 September 1997 Kabatnik et al.
D395586 June 1998 Arakawa et al.
D396395 July 1998 Zurwelle
D406511 March 1999 Zurwelle
D406741 March 1999 Zurwelle
D406742 March 1999 Schoen et al.
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D439123 March 2001 Sakai et al.
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D447032 August 2001 Schoen et al.
6357533 March 2002 Buchholz et al.
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6415875 July 2002 Meixner et al.
D470737 February 2003 Chunn
Primary Examiner: Gandy; James
Assistant Examiner: Nelson; T. Chase
Attorney, Agent or Firm: Hardaway, III; John B. Nexsen Pruet, LLC

Description



FIG. 1 is a front perspective view of the hammer drill of the present invention;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front end view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

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