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The ornamental design for office chair, as shown and described.
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FIG. 1 is a perspective view of a office chair showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
| Patent | Priority | Assignee | Title |
| D535486, | May 06 2005 | Chair | |
| D557024, | Apr 23 2007 | Office chair | |
| D557025, | Apr 23 2007 | Office chair | |
| D574645, | May 02 2007 | Dynamic Office Chair Company, Ltd. | Chair back |
| D575960, | Oct 25 2005 | Chair | |
| D613969, | Mar 25 2008 | Intro-Tech Automotive, Inc. | Chair control knob |
| D642833, | Jul 08 2010 | Chair armrest | |
| D656329, | Aug 19 2009 | ITOKI CORPORATION | Chair |
| D690523, | Nov 06 2009 | PATRA CO , LTD | Office chair |
| Patent | Priority | Assignee | Title |
| D439101, | Apr 09 1999 | STEELCASE DEVELOPMENT INC | Back cover for a seating unit |
| D442790, | Apr 09 1999 | Steelcase Development Inc. | Chair |
| D445613, | Apr 06 2000 | GROUPE LACASSE LLC | Chair |
| D451293, | Jan 09 2001 | Chair | |
| D451723, | Feb 26 2001 | Executive chair | |
| D465938, | Jan 08 2002 | NORSTAR OFFICE PRODUCTS, INC | Chair |
| D468564, | Jun 09 2000 | PRO-CORD S P A | Task chair |
| D471024, | Apr 17 2002 | BANK OF AMERICA, N A | Chair |
| D472080, | Nov 14 2000 | Toyo-Kougei Inc. | Chair |
| D474346, | Jan 25 2001 | JSJ Furniture Corporation | Chair |
| D481230, | Jun 09 2000 | Pro-Cord S.p.A. | Chair |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 20 2003 | TAI, JOHNNY | WU, HSIU-HSUEH | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014649 | /0308 | |
| Oct 23 2003 | Hsiu-Hsueh Wu | (assignment on the face of the patent) | / |
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