|
The ornamental design for an office chair, as shown and described. |
FIG. 1 is a left frontal perspective illustration of an office chair according to our invention;
FIG. 2 is a side elevational view thereof, the opposite side being a mirror image thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left frontal perspective illustration of a second embodiment of an office chair according to our invention;
FIG. 8 is a side elevational view of the second embodiment of our invention, the opposite side being a mirror image thereof;
FIG. 9 is a front elevational view of the second embodiment of our invention;
FIG. 10 is a rear elevational view of the second embodiment of our invention;
FIG. 11 is a top plan view of the second embodiment of our invention;
FIG. 12 is a bottom plan view of the second embodiment of our invention;
FIG. 13 is a left frontal perspective illustration of a third embodiment of an office chair according to our invention;
FIG. 14 is a side elevational view of the third embodiment of our invention, the opposite side being a mirror image thereof;
FIG. 15 is a front elevational view of the third embodiment of our invention;
FIG. 16 is a rear elevatiional view of the third embodiment of our invention;
FIG. 17 is a top plan view of the third embodiment of our invention;
FIG. 18 is a bottom plan view of the third embodiment of our invention;
FIG. 19 is a left frontal perspective illustration of the fourth embodiment of our office chair;
FIG. 20 is a side elevational view of the fourth embodiment of our invention, the opposite side being a mirror image thereof;
FIG. 21 is a front elevational view of the fourth embodiment of our invention;
FIG. 22 is a rear elevational view of the fourth embodiment of our invention;
FIG. 23 is a top plan view of the fourth embodiment of our invention; and,
FIG. 24 is a bottom plan view of the fourth embodiment of our invention.
Saul, Gregory M., Tolleson, Thomas H.
Patent | Priority | Assignee | Title |
182331, | |||
233809, | |||
D253205, | Jan 14 1977 | Chair | |
D260205, | May 22 1978 | Steelcase Inc. | Armchair |
D279154, | May 27 1982 | SUNLITE CASUAL FURNITURE, INC | Combined seat and backrest unit |
D291160, | Apr 05 1984 | Litton Business Systems, Inc. | Chair |
D305183, | Oct 07 1986 | KNOLL, INC | Armchair |
D318184, | Jan 14 1986 | STEELCASE DEVELOPMENT INC , A CORPORATION OF MICHIGAN | Chair |
D320507, | Aug 15 1988 | Steelcase Development Corporation | Chair |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 24 1992 | TOLLESON, THOMAS H | ALLSTEEL INC A CORPORATION OF IL | ASSIGNMENT OF ASSIGNORS INTEREST | 006077 | /0817 | |
Mar 24 1992 | SAUL, GREGORY M | ALLSTEEL INC A CORPORATION OF IL | ASSIGNMENT OF ASSIGNORS INTEREST | 006077 | /0817 | |
Mar 26 1992 | Allsteel Inc. | (assignment on the face of the patent) | / | |||
May 11 2004 | HON TECHNOLOGY INC | HNI TECHNOLOGIES INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 015908 | /0393 |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |