Dented steel pipe

Motegi , et al. June 5, 2

Patent Grant D661380

U.S. patent number D661,380 [Application Number D/396,712] was granted by the patent office on 2012-06-05 for dented steel pipe. This patent grant is currently assigned to Nippon Steel Corporation. Invention is credited to Hiroyuki Mimura, Yuki Motegi, Takashi Oosawa, Tetsu Satoh.


United States Patent D661,380
Motegi ,   et al. June 5, 2012

Dented steel pipe

Claims

CLAIM The ornamental design for a dented steel pipe, as shown and described.
Inventors: Motegi; Yuki (Tokyo, JP), Mimura; Hiroyuki (Tokyo, JP), Oosawa; Takashi (Tokyo, JP), Satoh; Tetsu (Tokyo, JP)
Assignee: Nippon Steel Corporation (Tokyo, JP)
Appl. No.: D/396,712
Filed: July 6, 2011

Foreign Application Priority Data

Jan 7, 2011 [JP] 2011-000192
Current U.S. Class: D23/266
Current International Class: 2301
Field of Search: ;D23/266 ;D25/119-126,131 ;405/266 ;138/121-122,140,154,173

References Cited [Referenced By]

U.S. Patent Documents
85149 December 1868 Van Amringe
D5178 August 1871 Gould
D16763 June 1886 Pfeifer
436463 September 1890 Richard
650575 May 1900 Whitney
910192 January 1909 Grouvelle et al.
D76323 September 1928 Rowan
D199084 September 1964 Feigenbaum
3612175 October 1971 Ford et al.
D330774 November 1992 Klaric
D355353 February 1995 Pozzi
D380886 July 1997 Hauser et al.
5729952 March 1998 Dahl
D415574 October 1999 Shrira
D415847 October 1999 Schaefer
D473663 April 2003 Chou
D496471 September 2004 Fergusson
D525684 July 2006 Jhang
D530482 October 2006 Zhang et al.
D539550 April 2007 Ping Sheng
D583486 December 2008 Kelley
2011/0030834 February 2011 Booth
Primary Examiner: Nelson; T. Chase
Assistant Examiner: Goodman; Eric
Attorney, Agent or Firm: Sughrue Mion, PLLC

Description



FIG. 1 is a front elevation view of a dented steel pipe.

FIG. 2 is a rear elevation view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is an enlarged front elevation view of the portion of the dented steel pipe shown in FIG. 1.

FIG. 8 is an enlarged top plan view of the portion of the dented steel pipe shown in FIG. 3.

FIG. 9 is a cross-sectional view taken along the line 9-9 in FIG. 7; and,

FIG. 10 is a cross-sectional view taken along the line 10-10 in FIG. 8.

The length of the dented steel pipe is indeterminate and thus its precise length is not claimed, and the dents are repeated at regular intervals throughout the length of the dented steel pipe.

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