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Patent
   D246217
Priority
Feb 05 1976
Filed
Feb 05 1976
Issued
Nov 01 1977
Expiry
Nov 01 1991
Inventors
Doerner, F…
Assg.orig
NORTHFIELD…
Assg.curr
NORTHFIELD…
Entity
unknown
Referenced by
16
References
4
Maint.:
n/a
The ornamental design for a chair control unit, substantially as shown.

FIG. 1 is a top plan view of a chair control unit showing my design.

FIG. 2 is a side view thereof.

FIG. 3 is an underneath view thereof.

FIG. 4 is a back end view thereof.

FIG. 5 is an underneath perspective view thereof.

FIG. 6 is a top perspective view thereof.
INVENTORS:

Doerner, Frank

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
7017992, Feb 18 2003 GILL INDUSTRIES, INC Chair control device for a tiltable chair
D252661, Mar 30 1977 Doerner Products Co. Limited Swivel posture chair control
D252786, Jul 18 1977 NORTHFIELD METAL PRODUCTS LTD , 145 NORTHFIELD DR WEST, WATERLOO, ONTARIO, CANADA N2L 5J3 A CORP OF ONTARIO Combined gas cylinder and control handle for a chair
D259457, Apr 25 1979 Ayers Manufacturing Corp. Swivel support for a vehicle seat
D278961, Mar 15 1983 NORTHFIELD METAL PRODUCTS LTD , 145 NORTHFIELD DR WEST, WATERLOO, ONTARIO, CANADA N2L 5J3 A CORP OF ONTARIO Chair control
D285633, Feb 29 1984 NORTHFIELD METAL PRODUCTS LTD , 145 NORTHFIELD DR WEST, WATERLOO, ONTARIO, CANADA N2L 5J3 A CORP OF ONTARIO Chair control
D288629, Oct 17 1984 LEGGETT & PLATT, INCORPORATED, NO 1 LEGGETT RD , CARTHAGE, MO 64836 A CORP OF MO Chair control release and locking cam for tiltable chairs
D289590, Aug 15 1984 NORTHFIELD METAL PRODUCTS LTD , 145 NORTHFIELD DR WEST, WATERLOO, ONTARIO, CANADA N2L 5J3 A CORP OF ONTARIO Chair control release and locking cam for tiltable chairs
D289591, May 08 1984 HAG A S Chair control unit
D290073, Nov 06 1984 LEGGETT & PLATT, INCORPORATED, NO 1 LEGGETT RD , CARTHAGE, MO 64836 A CORP OF MO Chair control
D377283, Nov 17 1995 Jorng Well Industrial Co., Ltd. Seat support of a chair
D383019, Nov 16 1993 STEELCASE DEVELOPMENT INC , A CORPORATION OF MICHIGAN Chair actuator
D550989, May 03 2006 DONATI S P A Seat component
D550990, May 03 2006 DONATI S P A Seat component
D578326, Oct 24 2007 Donati S.p.A. Seat mechanism
D709802, Feb 08 2013 HITACHI ASTEMO, LTD Seat damper
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2008209,
3656805,
3675887,
CA774,926,
ASSIGNMENT RECORDS    Assignment records on the USPTO
/
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 15 1986DOERNER, FRANKNORTHFIELD METAL PRODUCTS LTD , 145 NORTHFIELD DR WEST, WATERLOO, ONTARIO, CANADA N2L 5J3 A CORP OF ONTARIOASSIGNMENT OF ASSIGNORS INTEREST 0049370434 pdf
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