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

Patent Owner(s)

Patent Owner	Address
ECOLAB USA INC	1 ECOLAB PLACE SAINT PAUL MN 55102

International Classification(s)

• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
• B22C:FOUNDRY MOULDING

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bhattacharja, Sankar	Naperville, US	9	66
# of filed Patents : 9 Total Citations : 66

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Patent Citation Ranking

• 5 Citation Count
• C08L Class

• 23.35 % this patent is cited more than
• 9 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	Jul 5, 2027

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
January 05, 2016	US,9227241,B2   US9227241B2	GRANTED PATENT AS SECOND PUBLICATION
June 14, 2012	US,20120148736,A1   US20120148736A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9227241

Investment casting shells having an organic component

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Abstract

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A composition for use in investment casting shells and a method of making the composition is disclosed. The composition includes an engineered binder and a refractory flour. The engineered binder comprises a siliceous material and at least one organic component selected from: at least one type of wood pulp; at least one species of cellulose fiber; and combinations thereof. A particular benefit of the investment shell composition is simultaneously increased permeability and load bearing capacity.

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Description

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Claims

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Legal Events

 

• MAFP2023
• MAFP2019
• AS2017
• CC2016
• I2016
• AS2015
• STCF2015
• P2012
• F2010
• AS2010

Date	Code	Event	Description
Jun 21, 2023	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
Jun 20, 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
Feb 27, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NALCO COMPANY LLC;REEL/FRAME:044347/0104 Owner name: ECOLAB USA INC., MINNESOTA Effective Date: Feb 27, 2017
Apr 19, 2016	CC	CERTIFICATE OF CORRECTION
Jan 05, 2016	I	Issuance
Dec 29, 2015	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:NALCO COMPANY;REEL/FRAME:043924/0587 Owner name: NALCO COMPANY LLC, ILLINOIS Effective Date: Dec 29, 2015
Dec 16, 2015	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jun 14, 2012	P	Published
Dec 08, 2010	F	Filing
Dec 08, 2010	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BHATTACHARJA, SANKAR;REEL/FRAME:025468/0853 Owner name: NALCO COMPANY, ILLINOIS Effective Date: Dec 08, 2010