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

Patent Owner(s)

Patent Owner	Address
NAVY THE U S A AS REPRESENTED BY THE SECRETARY OF THE	ONE LIBERTY CTR 875 NORTH RANDOLPH STREET SUITE 1425 CHIEF OF NAVAL RESEARCH OFFICE OF COUNSEL (ATTN CODE OOCCIP) ARLINGTON VA 22203

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Beadie, Guy	Falls Church, US	7	46
# of filed Patents : 7 Total Citations : 46
Fleet, Erin F	Springfield, US	9	74
# of filed Patents : 9 Total Citations : 74

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• 0 Citation Count
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• 11 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	Aug 25, 2025

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
February 25, 2014	US,8659834,B2   US8659834B2	GRANTED PATENT AS SECOND PUBLICATION
January 03, 2013	US,20130003186,A1   US20130003186A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8659834

Achromatic gradient index singlet lens

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Abstract

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A method of making an achromatic gradient index singlet lens comprising utilizing a gradient index material with a curved front surface in which light does not follow a straight line as it travels through the material and wherein different color rays traverse different curved paths, utilizing the natural dispersion of the curved front surface as a strong positive lens, and developing a weakly diverging GRIN distribution within the lens to balance the chromatic aberrations of the curved front surface.

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Description

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Claims

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Legal Events

 

• MAFP2021
• FPAY2017
• I2014
• STCF2014
• P2013
• AS2012
• F2012
• PD2011

Date	Code	Event	Description
Jun 17, 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
Mar 24, 2017	FPAY	FEE PAYMENT	year of fee payment: 4
Feb 25, 2014	I	Issuance
Feb 05, 2014	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jan 03, 2013	P	Published
Aug 08, 2012	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BEADLE, GUY;FLEET, ERIN;SIGNING DATES FROM 20120611 TO 20120802;REEL/FRAME:028745/0160 Owner name: NAVY, THE U.S.A. AS REPRESENTED BY THE SECRETARY O
Jun 11, 2012	F	Filing
Jun 29, 2011	PD	Priority Date