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

Patent Owner(s)

Patent Owner	Address
GE AVIATION UK	MANCHESTER M2 3AB

International Classification(s)

• G01F:MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUI....

• 2005 Application Filing Year
• G01F Class
• 672 Applications Filed
• 340 Patents Issued To-Date
• 50.60 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Atkinson, Harry	Berkshire, GB	9	96
# of filed Patents : 9 Total Citations : 96

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Patent Citation Ranking

• 3 Citation Count
• G01F Class

• 3.35 % this patent is cited more than
• 18 Age

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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
June 05, 2007	US,7225671,B2   US7225671B2	GRANTED PATENT AS SECOND PUBLICATION
October 06, 2005	US,20050217367,A1   US20050217367A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7225671

Fluid-quantity gauging

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Abstract

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An ultrasonic fuel-gauging system has several probes each having a transducer mounted at the lower end of a still well. The transducers are connected to a processor, which measures the height of fuel above the transducers within the still wells. The processor also measures the resonant frequency of each transducer and from this calculates fuel density. The system calculates the mass of fuel in the tank from the density and the volume as calculated from the heights.

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Description

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Claims

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Legal Events

 

• LAPS2019
• STCH2019
• FP2019
• FEPP2019
• FPAY2014
• FPAY2010
• I2007
• STCF2007
• AS2007
• P2005
• F2005
• AS2005
• PD2004

Date	Code	Event	Description
Jul 08, 2019	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 08, 2019	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 05, 2019	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jun 05, 2019
Jan 21, 2019	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Dec 05, 2014	FPAY	FEE PAYMENT	year of fee payment: 8
Dec 06, 2010	FPAY	FEE PAYMENT	year of fee payment: 4
Jun 05, 2007	I	Issuance
May 16, 2007	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
May 04, 2007	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SMITHS GROUP PLC (FORMERLY SMITHS INDUSTRIES PLC);REEL/FRAME:020143/0446 Owner name: GE AVIATION UK, ENGLAND Effective Date: May 04, 2007
Oct 06, 2005	P	Published
Mar 28, 2005	F	Filing
Mar 01, 2005	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ATKINSON, HARRY;REEL/FRAME:016423/0692 Owner name: SMITHS GROUP PLC, UNITED KINGDOM Effective Date: Mar 01, 2005
Apr 03, 2004	PD	Priority Date