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

Patent Owner(s)

• BANK OF NEW ENGLAND, N.A. (NKA FLEET BANK OF MASSACHUSETTS, N.A. SUCCESSOR TO NEW BANK OF NEW ENGLAND, N.A. AS ASSIGNEE OF THE FEDERAL DEPOSIT INSURANCE CORPORATION, AS RECEIVER OF BANK OF NEW ENGLAND, N.A.)

International Classification(s)

• G01R:MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC V....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Fichtenbaum, Matthew L	Chelmsford, MA	3	283

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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

Full Text

US Patent No: 4186338

Phase change detection method of and apparatus for current-tracing the location of faults on printed circuit boards and similar systems

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