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

Patent Owner(s)

Patent Owner	Address
PRINCE MINERALS INC	15311 W VANTAGE PARKWAY HOUSTON TX 77032

International Classification(s)

• B22C:FOUNDRY MOULDING

• 2008 Application Filing Year
• B22C Class
• 82 Applications Filed
• 44 Patents Issued To-Date
• 53.66 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Attridge, Jon H	Waxhaw, US	3	9
# of filed Patents : 3 Total Citations : 9
Werling, Joshua M	Fishers, US	8	26
# of filed Patents : 8 Total Citations : 26

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Patent Citation Ranking

• 2 Citation Count
• B22C Class

• 19.40 % this patent is cited more than
• 14 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
May 10, 2011	US,7938169,B2   US7938169B2	GRANTED PATENT AS SECOND PUBLICATION
December 24, 2009	US,20090314461,A1   US20090314461A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7938169

Anti-veining agent for metal casting

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Abstract

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Additives to foundry sand cores are provided for reducing or eliminating surface defects called veins in metal castings, by reducing the propensity of sand mold and core aggregates to crack during metal casting. The additives generally include an iron oxide component such as magnetite and hematite and a glass component which is preferably free of lithium oxide. The additive may also optionally include an amount of carbon effective to reduce adhesion of sand particles to the casting.

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Description

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Claims

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Legal Events

 

• AS2018
• STCH2015
• FP2015
• LAPS2015
• REMI2014
• AS2012
• AS2012
• I2011
• P2009
• AS2008
• F2008
• PD2008

Date	Code	Event	Description
Mar 29, 2018	AS	ASSIGNMENT	free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:045399/0154 Owner name: IGC TECHNOLOGIES, LLC, TEXAS Effective Date: Mar 29, 2018 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:045399/0154 Owner name: PRINCE ENERGY LLC (FORMERLY GRINDING AND SIZING CO Effective Date: Mar 29, 2018 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:045399/0154 Owner name: PRINCE MINERALS LLC (FORMERLY PRINCE MINERALS, INC Effective Date: Mar 29, 2018 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF MONTREAL, AS ADMINISTRATIVE AGENT;REEL/FRAME:045801/0731 Owner name: PRINCE MINERALS LLC (FORMERLY PRINCE MINERALS, INC Effective Date: Mar 29, 2018 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF MONTREAL, AS ADMINISTRATIVE AGENT;REEL/FRAME:045801/0731 Owner name: IGC TECHNOLOGIES LLC, TEXAS Effective Date: Mar 29, 2018 free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF MONTREAL, AS ADMINISTRATIVE AGENT;REEL/FRAME:045801/0731 Owner name: PRINCE ENERGY LLC (FORMERLY GRINDING AND SIZING CO Effective Date: Mar 29, 2018
Jun 08, 2015	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
May 10, 2015	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: May 10, 2015
May 10, 2015	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Dec 19, 2014	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 14, 2012	AS	ASSIGNMENT	free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:BANK OF MONTREAL, AS ADMINISTRATIVE AGENT;REEL/FRAME:029644/0670 Owner name: PRINCE MINERALS, INC., NEW YORK Effective Date: Dec 14, 2012 free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:BANK OF MONTREAL, AS ADMINISTRATIVE AGENT;REEL/FRAME:029644/0670 Owner name: REFRACTORY MATERIALS INTERNATIONAL INC., NEW YORK Effective Date: Dec 14, 2012
Dec 14, 2012	AS	ASSIGNMENT	free format text: SECURITY AGREEMENT;ASSIGNORS:GRINDING AND SIZING COMPANY LLC;PRINCE MINERALS, INC.;IGC TECHNOLOGIES, LLC;REEL/FRAME:029469/0301 Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATE Effective Date: Dec 14, 2012 free format text: SECURITY AGREEMENT;ASSIGNORS:GRINDING AND SIZING COMPANY LLC;PRINCE MINERALS, INC.;IGC TECHNOLOGIES, LLC;REEL/FRAME:029469/0290 Owner name: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT, ILLINOI Effective Date: Dec 14, 2012
May 10, 2011	I	Issuance
Dec 24, 2009	P	Published
Jul 28, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ATTRIDGE, JON H.;WERLING, JOSHUA M.;REEL/FRAME:021300/0753;SIGNING DATES FROM 20080724 TO 20080725 Owner name: PRINCE MINERALS, INC., NEW YORK free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ATTRIDGE, JON H.;WERLING, JOSHUA M.;SIGNING DATES FROM 20080724 TO 20080725;REEL/FRAME:021300/0753 Owner name: PRINCE MINERALS, INC., NEW YORK
Jun 20, 2008	F	Filing
Jun 20, 2008	PD	Priority Date