US Patent No: D534018

Number of patents in Portfolio can not be more than 2000

Control for seating unit

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
STEELCASE INC.GRAND RAPIDS, MI453

International Classification(s)

  • No International Classification to display

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heidmann, Kurt R Grand Rapids, MI 101 1589
Loew, Glen Oliver Hamburg, DE 14 162

Cited Art

Patent Info (Count) # Cites Year
 
OKAMURA CORPORATION (6)
D436259 Chair 48 2000
D436260 Chair 49 2000
D437132 Chair 32 2000
D469618 Chair 31 2001
D476820 Chair 33 2001
D489542 Chair 52 2003
 
VITRA PATENTE AG (5)
D410799 Chair 56 1997
6,149,236 Chair frame, control mechanism and upholstery 43 1999
D437497 Chair 51 1999
D437701 Chair 86 1999
6,439,661 Chair mechanism 50 2000
 
KNOLL, INC. (3)
6,076,892 Multi-adjustable armrest assembly 37 1997
6,394,553 Adjustable armrest assembly with single adjustment lever 24 2000
2006/0006,715 Office chair 29 2005
 
STEELCASE DEVELOPMENT CORPORATION (3)
4,744,603 Chair shell with selective back stiffening 76 1986
5,050,931 Controlled deflection front lip for seating 47 1986
D457739 Chair 32 2000
 
ALLSEATING CORPORATION (2)
D436456 Chair 70 2000
D449174 Chair 84 2000
 
FEHLBAUM & CO. (2)
D327781 Chair 32 1989
D327782 Chair 27 1989
 
HAWORTH, INC. (2)
D407576 Chair 30 1997
6,106,070 Height-adjustable chair arm assembly 30 1998
 
STEELCASE INC. (2)
D509969 Seating unit 50 2003
6,957,863 Seating unit having motion control 22 2004
 
E CHAIR COMPANY, THE (1)
D453079 Arm chair 77 2001
 
FRIEDRICH W. DAUPHIN GMBH & CO. ENTWICKLUNGS- UND BETEILIGUNGS-KG (1)
5,295,731 Chair, in particular office chair 15 1992
 
HERMAN MILLER, INC. (1)
D346279 Chair 97 1992
 
KOKUYO CO., LTD. (1)
D456625 Chair 29 2001
 
NATIONSBANK OF TEXAS, N.A. (1)
D266804 Seat 6 1979
 
PRO-CORD S.P.A. (1)
D468564 Task chair 23 2000
 
PRO-CORD S.R.L. (1)
6,382,723 Chair with synchronized tilting seat and back 9 2000
 
QSI COMPONETS, INC. (1)
5,997,093 Adjustable chair arm 15 1998
 
SHIN YEH ENTERPRISE CO., LTD. (1)
5,318,347 Height-adjustable armrest unit for chair 58 1993
 
WESTINGHOUSE ELECTRIC CORP. (1)
D260056 Arm-chair 25 1978
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
D451293 Chair 79 2001

Patent Citation Ranking

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Forward Cites

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 26, 2014
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 26, 2018
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00