Color changing matrix as wear indicator

United States of America Patent

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Mar 4, 2008
Grant Date
Jul 15, 2004
app pub date
Sep 15, 2003
filing date
Aug 23, 1991

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Expired

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Abstract

A sustained-release matrix for dental application includes either an anti-microbial agent or a colorant that is released from the matrix when the matrix contacts water. The preferred matrices include a water-soluble polymer and a water-insoluble support resin.

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Patent Owner	Address
THE GILLETTE COMPANY	BOSTON MA 02127

International Classification(s)

A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....

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Inventor Name	Address	# of filed Patents	Total Citations
Philbrook, Carl M	Jamaica Plain, MA	7	320
Tseng, Mingchih M	Hingham, MA	44	1973

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Color changing matrix as wear indicator

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United States of America Patent

10663352

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PATENT NO	7338664
APP PUB NO	20040134010A1
SERIAL NO	10663352
DOCKET NO

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 04, 2008	US,7338664,B2 US7338664B2	GRANTED PATENT AS SECOND PUBLICATION
July 15, 2004	US,20040134010,A1 US20040134010A1	FIRST PUBLISHED PATENT APPLICATION

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10663352

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