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

Patent Owner(s)

Patent Owner	Address
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION INCORPORATED	223 GRINTER HALL GAINESVILLE FL 32611

International Classification(s)

• F15C:FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMP....
• F15D:FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENC....

• 2015 Application Filing Year
• F15C Class
• 21 Applications Filed
• 19 Patents Issued To-Date
• 90.48 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gupta, Arnob Das	Gainesville, US	1	3
# of filed Patents : 1 Total Citations : 3
Roy, Subrata	Gainesville, US	48	717
# of filed Patents : 48 Total Citations : 717

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Patent Citation Ranking

• 1 Citation Count
• F15C Class

• 14.29 % 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	Feb 28, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 28, 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
August 29, 2017	US,9746010,B2   US9746010B2	GRANTED PATENT AS SECOND PUBLICATION
October 15, 2015	US,20150292533,A1   US20150292533A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9880452

Image projection apparatus and illumination optical system

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Abstract

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An image projection apparatus includes: an illumination optical system; a projection optical system assembled integrally with the illumination optical system; and a frame fixed to only one system, that has a larger weight, of the illumination optical system and the projection optical system.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2022
• MAFP2018
• FPAY2014
• I2011
• STCF2011
• P2010
• FEPP2010
• F2010
• AS2004
• PD2003

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Dec 17, 2014	FPAY	FEE PAYMENT	year of fee payment: 4
Jul 05, 2011	I	Issuance
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Dec 23, 2010	P	Published
Nov 02, 2010	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Aug 26, 2010	F	Filing
May 14, 2004	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WHITBY-STREVENS, COLIN;HAUCK, JERROLD VON;REEL/FRAME:025369/0953 Owner name: APPLE COMPUTER INC., CALIFORNIA Effective Date: May 14, 2004
Nov 18, 2003	PD	Priority Date