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

Patent Owner(s)

Patent Owner	Address
MARTIN AUDIO LIMITED	CENTURY POINT HALIFAX ROAD CRESSEX BUSINESS PARK HIGH WYCOMBE BUCKINGHAMSHIRE

International Classification(s)

• H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....

• 2015 Application Filing Year
• H04R Class
• 2632 Applications Filed
• 2269 Patents Issued To-Date
• 86.21 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Anthony, Philip	Marlow, GB	22	171
# of filed Patents : 22 Total Citations : 171
Baird, Jason	London, GB	21	151
# of filed Patents : 21 Total Citations : 151
Spandl, Matthew	Wheatley, GB	1	11
# of filed Patents : 1 Total Citations : 11

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Patent Citation Ranking

• 8 Citation Count
• H04R Class

• 28.45 % this patent is cited more than
• 7 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	Nov 8, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 8, 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
May 08, 2018	US,9967652,B2   US9967652B2	GRANTED PATENT AS SECOND PUBLICATION
February 16, 2017	US,20170048610,A1   US20170048610A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9967652

Coaxial loudspeaker apparatus

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Abstract

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A coaxial loudspeaker apparatus (10) comprising a first unit (20) being arranged to propagate sound in a first frequency range; a second unit comprising a first waveguide (30) arranged to propagate sound in a second frequency range that is higher than the first frequency range, and a second waveguide (60) arranged to move, during operation, relative to the first waveguide (30); wherein the second waveguide (60) extends substantially in prolongation of the first waveguide (30). The invention also extends to a loudspeaker (190) incorporating the coaxial loudspeaker apparatus (10).

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2021
• AS2018
• I2018
• STCF2018
• AS�2017
• AS2017
• P2017
• F2015
• PD2014

Date	Code	Event	Description
Nov 05, 2021	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
Jun 29, 2018	AS	ASSIGNMENT	free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:051238/0211 Owner name: MARTIN AUDIO LIMITED, UNITED KINGDOM Effective Date: Jun 29, 2018
May 08, 2018	I	Issuance
Apr 18, 2018	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Oct 13, 2017	AS�	SECURITY INTEREST	free format text: PATENT AND TRADEMARK SECURITY AGREEMENT;ASSIGNOR:MARTIN AUDIO LIMITED;REEL/FRAME:045002/0677 Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, CALIFORNIA Effective Date: Oct 13, 2017
Jul 24, 2017	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAIRD, JASON;ANTHONY, PHILIP;SPANDL, MATTHEW;SIGNING DATES FROM 20170126 TO 20170710;REEL/FRAME:043073/0876 Owner name: MARTIN AUDIO LIMITED, GREAT BRITAIN
Feb 16, 2017	P	Published
Apr 23, 2015	F	Filing
Apr 23, 2014	PD	Priority Date