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

Patent Owner(s)

Patent Owner	Address
LOCHINVAR CORPORATION	300 MADDOX SIMPSON PARKWAY NASHVILLE TN 37090

International Classification(s)

• F24H:FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING H....
• F23D:BURNERS

• 2012 Application Filing Year
• F24H Class
• 223 Applications Filed
• 178 Patents Issued To-Date
• 79.83 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Smelcer, Jim C	Hermitage, US	9	98
# of filed Patents : 9 Total Citations : 98

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Patent Citation Ranking

• 4 Citation Count
• F24H Class

• 17.48 % this patent is cited more than
• 11 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 19, 2026

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 19, 2014	US,8807092,B2   US8807092B2	GRANTED PATENT AS SECOND PUBLICATION
January 17, 2013	US,20130014708,A1   US20130014708A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 5494498

Methods for using concentrated nitrogen-containing fertilizers

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Abstract

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Urea increases the solute content of a fertilizer comprising water and at least two different nitrate-containing compounds selected from the group consisting of ammonium nitrate, alkali metal nitrates, and alkaline earth metal nitrates. In addition, urea enhances plant uptake of alkaline earth metals. Particularly favored are quaternary aqueous solutions containing urea, calcium nitrate, and ammonium nitrate.

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Description

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Claims

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Legal Events

 

• MAFP2022
• MAFP2019
• CC2016
• I2015
• STCF2015
• P2014
• F2012
• PD2011

Date	Code	Event	Description
Sep 20, 2022	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Jan 04, 2019	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4
May 17, 2016	CC	CERTIFICATE OF CORRECTION
Jul 14, 2015	I	Issuance
Jun 24, 2015	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Sep 11, 2014	P	Published
Sep 19, 2012	F	Filing
Sep 20, 2011	PD	Priority Date