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

Patent Owner(s)

Patent Owner	Address
AMERIWOOD INDUSTRIES INC	410 EAST SOUTH FIRST STREET WRIGHT CITY MO 63390

International Classification(s)

• A47B:TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS....

• 2016 Application Filing Year
• A47B Class
• 1233 Applications Filed
• 953 Patents Issued To-Date
• 77.30 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bergin, Terrence C	Indianapolis, US	2	20
# of filed Patents : 2 Total Citations : 20
Leclerc, Simon L	Naperville, US	2	20
# of filed Patents : 2 Total Citations : 20
Mendenhall, Andrew B	Mooresville, US	47	787
# of filed Patents : 47 Total Citations : 787
Turner, Dennis M	Mooresville, US	70	1312
# of filed Patents : 70 Total Citations : 1312
Zink, Paul T	Fishers, US	34	658
# of filed Patents : 34 Total Citations : 658

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Patent Citation Ranking

• 4 Citation Count
• A47B Class

• 21.85 % this patent is cited more than
• 8 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 5, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 5, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
September 05, 2017	US,9750338,B2   US9750338B2	GRANTED PATENT AS SECOND PUBLICATION
August 11, 2016	US,20160227920,A1   US20160227920A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7807830

Manufacture of pure hydralazine salts

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Abstract

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The present invention provides an improved process of preparing hydralazine hydrochloride, which involves the preparation of 1-chlorophthalazine salt and further reacting with hydrazine followed by purification of hydralazine hydrochloride, which is free of phosphate, does not contain any individual impurities more than 0.05%, total impurities less than 0.5%, and a hydrazine content of not more than 0.001%, and preferably less than 0.0003%. One benefit of improved purity is enhanced storage stability.

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Description

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Claims

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Legal Events

 

• MAFP2024
• MAFP2020
• I2016
• STCF2016
• P2015
• F2015
• AS2015

Date	Code	Event	Description
Jan 05, 2024	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 06, 2020	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
Jul 05, 2016	I	Issuance
Jun 15, 2016	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jul 30, 2015	P	Published
Apr 03, 2015	F	Filing
Apr 03, 2015	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MANSON, RICHARD B.;MILLS, NIGEL G.;WISEMAN, TERRY R.;SIGNING DATES FROM 20090831 TO 20100823;REEL/FRAME:035331/0544 Owner name: PREMARK FEG L.L.C., ILLINOIS