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

Patent Owner(s)

Patent Owner	Address
ASAHI TECHNO GLASS CORPORATION	1-50-1 GOYDA FUNABASHI-SHI CHIBA 273-0044

International Classification(s)

• C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....

• 1997 Application Filing Year
• C03C Class
• 265 Applications Filed
• 134 Patents Issued To-Date
• 50.57 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kuroki, Yuichi	Funabashi, JP	39	595
# of filed Patents : 39 Total Citations : 595
Nakamura, Akira	Funabashi, JP	310	3171
# of filed Patents : 310 Total Citations : 3171
Rokudai, Satoshi	Funabashi, JP	4	8
# of filed Patents : 4 Total Citations : 8
Tanabe, Ryuichi	Yokohama, JP	11	139
# of filed Patents : 11 Total Citations : 139

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Patent Citation Ranking

• 2 Citation Count
• C03C Class

• 0.40 % this patent is cited more than
• 27 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

Full Text

US Patent No: 5821182

Hermetic sealing composition

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Abstract

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A hermetic sealing composition comprising 100 parts by weight of a basic composition consisting of from 80 to 99.9 wt % of a crystalline low melting glass powder containing lead and boron and from 0.1 to 20 wt % of a low expansion ceramic filler, and from 0.001 to 1.0 part by weight, in total, of at least one of an .alpha.-4PbO.B.sub.2 O.sub.3 crystal powder and a Pb.sub.3 O.sub.4 powder, incorporated to the basic composition, the thermal expansion coefficient of the sealing composition after firing being from 80.times.10.sup.-7 to 105.times.10.sup.-7 /.degree.C. within a range of from room temperature to 300.degree. C.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2010
• FP2010
• LAPS2010
• REMI2010
• FPAY2006
• FPAY2002
• AS1999
• AS1999
• FEPP1998
• I1998
• F1997
• PD1995

Date	Code	Event	Description
Nov 08, 2010	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Oct 13, 2010	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Oct 13, 2010
Oct 13, 2010	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
May 17, 2010	REMI	MAINTENANCE FEE REMINDER MAILED
Mar 17, 2006	FPAY	FEE PAYMENT	year of fee payment: 8
Mar 21, 2002	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 13, 1999	AS	ASSIGNMENT	free format text: CHANGE OF CORPORATE ADDRESS;ASSIGNOR:ASAHI GLASS COMPANY LTD.;REEL/FRAME:010557/0067 Owner name: ASAHI GLASS COMPANY LTD., JAPAN Effective Date: Dec 13, 1999
Jan 04, 1999	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:IWAKI GLASS COMPANY LTD.;REEL/FRAME:011204/0377 Owner name: ASAHI TECHNO GLASS CORPORATION, JAPAN Effective Date: Jan 04, 1999
Dec 01, 1998	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Oct 13, 1998	I	Issuance
Apr 18, 1997	F	Filing
Aug 22, 1995	PD	Priority Date