Polyurea/urethane optical material and method for making it

United States of America Patent

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Sep 6, 2005
Grant Date
Aug 26, 2004
app pub date
Feb 24, 2003
filing date
Feb 24, 2003

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Expired

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Abstract

A polyurea/urethane material and method for making it provides for improved optical parts. The material allows for ease of manufacture of parts having good optical properties, high hardness, low density, and good impact resistance. The method provides for related manufacturing advantages.

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Patent Owner	Address
YOUNGER MFG CO DBA YOUNGER OPTICS	2925 CALIFORNIA STRET TORRANCE CA 90503

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Inventor Name	Address	# of filed Patents	Total Citations
Slagel, Edwin C	Avondale, AZ	9	490
Slagel, Michael J	Peoria, AZ	3	49

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Polyurea/urethane optical material and method for making it

Number of patents in Portfolio can not be more than 2000

United States of America Patent

10373607

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PATENT NO	6939939
APP PUB NO	20040167311A1
SERIAL NO	10373607
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 06, 2005	US,6939939,B2 US6939939B2	GRANTED PATENT AS SECOND PUBLICATION
August 26, 2004	US,20040167311,A1 US20040167311A1	FIRST PUBLISHED PATENT APPLICATION

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