Family

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

Patent Owner(s)

Patent Owner	Address
BRUCKELMYER MARK	Not Provided

International Classification(s)

• E03B:INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING....

• 1991 Application Filing Year
• E03B Class
• 30 Applications Filed
• 4 Patents Issued To-Date
• 13.34 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bruckelmyer, Mark	5617 McQuade Rd., Duluth, MN 55804	7	99
# of filed Patents : 7 Total Citations : 99

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Patent Citation Ranking

• 31 Citation Count
• E03B Class

• 93.33 % this patent is cited more than
• 32 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

Full Text

US Patent No: 5181655

Mobile heating system

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Abstract

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A mobile heating system for thawing frozen ground. The system includes a hot water heater, antifreeze reservoir, and pumps mounted on a mobile apparatus such as a trailer for being towed by a car or truck. A line is connectable to the heater and antifreeze reservoir and includes a plurality of elongate heater probes for being implanted in the ground, adjacent a frozen water or sewer line. Circulation of hot water through the line and probes thaw the ground. Alternatively, the probes may be used to heat building material such as bricks.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2005
• FP2005
• LAPS2005
• REMI2004
• SULP2001
• FPAY2001
• REMI2000
• AS�1997
• FPAY1996
• SULP1996
• I1993
• F1991
• PD1991

Date	Code	Event	Description
Feb 23, 2005	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jan 26, 2005	FP	EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jan 26, 2005
Jan 26, 2005	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Aug 11, 2004	REMI	MAINTENANCE FEE REMINDER MAILED
Jan 18, 2001	SULP	SURCHARGE FOR LATE PAYMENT	year of fee payment: 7
Jan 18, 2001	FPAY	FEE PAYMENT	year of fee payment: 8
Aug 22, 2000	REMI	MAINTENANCE FEE REMINDER MAILED
Aug 28, 1997	AS�	SECURITY INTEREST	free format text: SECURITY AGREEMENT;ASSIGNOR:GROUND HEATERS, INC.;REEL/FRAME:008753/0815 Owner name: FIRST OF AMERICA BANK - N.A., MICHIGAN Effective Date: Aug 28, 1997
Aug 02, 1996	FPAY	FEE PAYMENT	year of fee payment: 4
Aug 02, 1996	SULP	SURCHARGE FOR LATE PAYMENT
Jan 26, 1993	I	Issuance
Aug 02, 1991	F	Filing
Aug 02, 1991	PD	Priority Date