Dented steel pipe
Latest Nippon Steel and Sumitomo Metal Corporation Patents:
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.
Claims
The ornamental design for a dented steel pipe, as shown and described.
Type: Grant
Filed: Jul 6, 2011
Date of Patent: Apr 9, 2013
Assignee: Nippon Steel and Sumitomo Metal Corporation (Tokyo)
Inventors: Yuki Motegi (Tokyo), Hiroyuki Mimura (Tokyo), Takashi Oosawa (Tokyo), Tetsu Satoh (Tokyo)
Primary Examiner: Eric L Goodman
Application Number: 29/396,731