Patent
   D421540
Priority
Oct 24 1997
Filed
Apr 02 1999
Issued
Mar 14 2000
Expiry
Mar 14 2014
Assg.orig
Entity
unknown
10
35
n/a
We claim the ornamental design for a chair back, as shown and described.

FIG. 1 is a front perspective view of our chair back design;

FIG. 2 is a rear perspective view of the chair back design shown in FIG. 1;

FIG. 3 is a left side perspective view of the chair back design shown in FIG. 1;

FIG. 4 is a right side view of the chair back design shown in FIG. 1;

FIG. 5 is a front view of the chair back design shown in FIG. 1;

FIG. 6 is a left side view of the chair back design shown in FIG. 1;

FIG. 7 is a rear view of the chair back design shown in FIG. 1; and,

FIG. 8 is a top view of the chair back design shown in FIG. 1.

The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design.

Dammermann, Arnold B., Klaasen, II, Gardner J., Teppo, David S., Stoddard, John P., Jenkins, David C., Diebel, Markus P.

Patent Priority Assignee Title
D438733, Apr 09 1999 STEELCASE DEVELOPMENT INC Lumbar region of a chair back
D439451, Apr 09 1999 STEELCASE DEVELOPMENT INC Back for a seating unit
D442400, Apr 09 1999 Steelcase Development Inc. Seating unit
D442790, Apr 09 1999 Steelcase Development Inc. Chair
D442791, Apr 09 1999 Steelcase Development Inc. Chair
D463174, Nov 30 2001 GROUPE LACASSE LLC Chair
D506628, Mar 24 2004 HNI TECHNOLOGIES INC Chair frame
D506629, Mar 26 2004 HNI TECHNOLOGIES INC Chair back
D507133, Dec 30 2003 HNI TECHNOLOGIES INC Armless chair
D509388, Dec 30 2003 HNI TECHNOLOGIES INC Chair
Patent Priority Assignee Title
4451085, Oct 01 1980 Wilkhahn & Hahne GmbH & Company Chair
4509793, Sep 03 1982 Wilkhahn Wilening + Hahne GmbH + Co. Chair
4529247, Apr 15 1982 Herman Miller, Inc. One-piece shell chair
4861108, Jun 07 1988 American Seating Company; AMERICAN SEATING COMPANY, A CORP OF DE Auditorium seat
4911501, Jun 09 1989 JAMI, INC Suspension mechanism for connecting chair backs and seats to a pedestal
5382079, Oct 25 1993 CHROMCRAFT REVINGTON, INC Adjustable arm attachable to a chair body
5501507, Sep 12 1994 RESEARCH AND DEVELOPMENT INSTITUTE, INC , AT MONTATA STATE UNIVERSITY Seat with spring-loaded lumbar support
5577807, Jun 09 1994 STEELCASE DEVELOPMENT INC , A CORPORATION OF MICHIGAN Adjustable chair actuator
5599067, Jun 07 1995 HERMAN MILLER INC Adjustable arm rest assembly
5667277, Jun 07 1995 HERMAN MILLER INC Height adjustable arm rest assembly
D272204, Oct 02 1981 Gispen & Staalmeubel B.V. Chair
D277143, Sep 29 1980 HAWORTH, INC , Chair
D279155, May 27 1982 SUNLITE CASUAL FURNITURE, INC Combined seat and backrest unit
D292655, Apr 05 1985 HAWORTH, INC , A CORP OF MICHIGAN Swivel chair
D309384, Apr 23 1987 Allsteel Inc. Seat
D320507, Aug 15 1988 Steelcase Development Corporation Chair
D328199, Oct 20 1988 FEHLBAUM & CO , A CORP OF SWITZERLAND Chair
D330478, Jun 09 1989 BOATMEN S A NATIONAL BANK OF ST LOUIS, AS AGENT Seat
D339927, Jan 11 1990 BANK OF AMERICA, N A Chair
D343740, Jun 11 1991 Chair
D345259, Sep 03 1991 Okamura Corporation Chair
D346279, Jun 15 1992 HERMAN MILLER, INC , A CORP OF MI Chair
D349621, Sep 21 1993 Chromcraft Corporation Chair arm
D351070, May 07 1993 STEELCASE DEVELOPMENT INC , A CORPORATION OF MICHIGAN Chair
D352181, Jun 09 1993 BANK OF AMERICA, N A Chair
D358063, Aug 10 1993 Miller Desk, Inc. Chair
D362947, Apr 09 1993 Ice cream cone holder
D362973, Jun 11 1993 HNI TECHNOLOGIES INC Swivel chair
D365453, Jun 13 1994 HERMAN MILLER, INC Chair
D371683, Dec 08 1994 HNI TECHNOLOGIES INC Office chair
D380110, Dec 01 1995 Chairtech, S.A. Chair
D390712, Nov 21 1996 Kimball International, Inc. Chair
D391791, Feb 12 1997 Lear Corporation Vehicles seat bolster
D393755, Mar 06 1997 PNC BANK Chair
D398163, Dec 20 1995 F -MARTIN STEIFENSAND BUEROMOEBEL GMBH Chair
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 02 1999Steelcase Inc.(assignment on the face of the patent)
Jul 01 1999Steelcase IncSTEELCASE DEVELOPMENT INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0101580941 pdf
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