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

Patent Owner(s)

Patent Owner	Address
ORICA EXPLOSIVES TECHNOLOGY PTY LTD	MELBOURNE VIC 3000

International Classification(s)

• F42B:EXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; A....

• 2008 Application Filing Year
• F42B Class
• 247 Applications Filed
• 166 Patents Issued To-Date
• 67.21 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Appleby, Rodney Wayne	Springfield, AU	9	46
# of filed Patents : 9 Total Citations : 46
Goodridge, Richard John	Kurri Kurri, AU	16	72
# of filed Patents : 16 Total Citations : 72
Johnson, David Olaf	Aurora, US	6	24
# of filed Patents : 6 Total Citations : 24
Miller, Thomas	Evergreen, US	175	3594
# of filed Patents : 175 Total Citations : 3594

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Patent Citation Ranking

• 1 Citation Count
• F42B Class

• 8.90 % this patent is cited more than
• 13 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
September 25, 2012	US,8272325,B2   US8272325B2	GRANTED PATENT AS SECOND PUBLICATION
July 22, 2010	US,20100180786,A1   US20100180786A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9273873

Hollow draft inducers (draft inducers or hollow inducers)

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Abstract

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Draft inducers (50,40) having hollow axis (73a,73b), folding impellers (37a) or retractable propellers (37b) having limited presence in the flue path, external motor (47a, 47b) with sensors (33a, 33b), male connection (63a, 63b) and female connection (65a, 65b) ends for connecting with flue stack and other tandem modules.

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Description

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Claims

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Legal Events

 

• MAFP2021
• FPAY2017
• CC2014
• I2014
• STCF2014
• P2009
• AS2008
• F2007
• PD2006

Date	Code	Event	Description
Nov 24, 2021	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 15, 2017	FPAY	FEE PAYMENT	year of fee payment: 4
Oct 21, 2014	CC	CERTIFICATE OF CORRECTION
Jun 10, 2014	I	Issuance
May 21, 2014	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Sep 24, 2009	P	Published
Oct 15, 2008	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LUCAS PUIG-GROS, JOAN;REEL/FRAME:021786/0350 Owner name: FLAMAGAS S.A., SPAIN Effective Date: Oct 15, 2008
Apr 30, 2007	F	Filing
May 05, 2006	PD	Priority Date