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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
TECHNOLOGY FINANCE CORPORATION (PROPRIETARY) LIMITED	72 GRAYSTON DRIVE SANDTON 2ND FLOOR FINANCE WEEK HOUSE TRANSVAAL PROVINCE

International Classification(s)

• H01M:PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ferg, Ernest E	Wilro Park , ZA	7	21
# of filed Patents : 7 Total Citations : 21
Gummow, Rosalind J	Pretoria , ZA	10	307
# of filed Patents : 10 Total Citations : 307
Thackeray, Michael M	Pretoria , ZA	83	2820
# of filed Patents : 83 Total Citations : 2820

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
July 07, 2009	US,7556890,B2   US7556890B2	GRANTED PATENT AS SECOND PUBLICATION
May 14, 2009	US,20090123836,A1   US20090123836A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7556890

Electrochemical cell

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Abstract

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of the framework structure. The transition metal cation in the fully discharged state has a mean oxidation state greater than +3 for Ti, +3 for V, +3.5 for Mn, +2 for Fe and +2 for Co. The cell includes as a cathode, a lithium metal oxide or sulphide compound. An electrically insulative lithium containing liquid or polymeric electronically conductive electrolyte is provided between the anode and the cathode.

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Description

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Claims

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Legal Events

 

• STCH2017
• FP2017
• LAPS2017
• REMI2017
• FPAY2013
• CC2009
• I2009
• P2009
• F2009
• PD1993

Date	Code	Event	Description
Aug 07, 2017	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jul 07, 2017	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jul 07, 2017
Jul 07, 2017	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Feb 17, 2017	REMI	MAINTENANCE FEE REMINDER MAILED
Jan 07, 2013	FPAY	FEE PAYMENT	year of fee payment: 4
Sep 01, 2009	CC	CERTIFICATE OF CORRECTION
Jul 07, 2009	I	Issuance
May 14, 2009	P	Published
Jan 14, 2009	F	Filing
Sep 02, 1993	PD	Priority Date