Hydraulic excavator
Latest Hitachi Construction Machinery Co., Ltd. Patents:
Each approximate hexagon showing in
Claims
We claim the ornamental design for a hydraulic excavator, as shown and described.
4397481 | August 9, 1983 | Dion et al. |
D271396 | November 15, 1983 | Inui |
5544435 | August 13, 1996 | Somero |
5590482 | January 7, 1997 | Peterson et al. |
D391272 | February 24, 1998 | Jin et al. |
D409629 | May 11, 1999 | Miyaoka et al. |
D437602 | February 13, 2001 | Hiraoka et al. |
D460975 | July 30, 2002 | Yanagida et al. |
D462973 | September 17, 2002 | Tamaru et al. |
D462974 | September 17, 2002 | Yanagida et al. |
D534552 | January 2, 2007 | Yanagida |
D 1371360 | October 2009 | JP |
D 30-0410389 | March 2006 | KR |
Type: Grant
Filed: Sep 22, 2011
Date of Patent: Apr 24, 2012
Assignee: Hitachi Construction Machinery Co., Ltd. (Tokyo)
Inventors: Kazuhiko Hiraoka (Kodaira), Tamio Kobayashi (Kasama), Hiroyuki Isobe (Tsuchiura), Tsuyoshi Shimizu (Kasumigaura)
Primary Examiner: Mark Goodwin
Attorney: Antonelli, Terry, Stout & Kraus, LLP.
Application Number: 29/402,238