Metal treatment – Stock – Copper base
Reexamination Certificate
2006-06-06
2006-06-06
Ip, Sikyin (Department: 1742)
Metal treatment
Stock
Copper base
C148S686000, C420S477000, C420S478000, C420S479000, C420S481000, C420S482000, C420S484000
Reexamination Certificate
active
07056396
ABSTRACT:
The free-cutting copper alloy according to the present invention contains a greatly reduced amount of lead in comparison with conventional free-cutting copper alloys, but provides industrially satisfactory machinability. The free-cutting alloys comprise 69 to 79 percent, by weight, of copper, 2.0 to 4.0 percent, by weight, of silicon, 0.02 to 0.4, by weight, of lead, and the remaining percent, by weight, of zinc.
REFERENCES:
patent: 1954003 (1934-04-01), Vaders
patent: 4055445 (1977-10-01), Pops
patent: 4676848 (1987-06-01), Ruchel
patent: 5582281 (1996-12-01), Nakashima et al.
patent: 5658401 (1997-08-01), Gaag
patent: 5942056 (1999-08-01), Singh
patent: 1243226 (1988-10-01), None
patent: 148824 (1931-10-01), None
patent: 1558470 (1970-03-01), None
patent: 3427740 (1986-02-01), None
patent: 41 39 063 (1993-06-01), None
patent: 359570 (1931-10-01), None
patent: 1443090 (1976-07-01), None
patent: 49-9296 (1974-01-01), None
patent: 56-9347 (1981-01-01), None
patent: 56-96040 (1981-08-01), None
patent: 61-133357 (1986-06-01), None
patent: 62274036 (1987-11-01), None
patent: 62-274036 (1987-11-01), None
patent: 62-297429 (1987-12-01), None
patent: 62297429 (1987-12-01), None
patent: 03-68732 (1991-03-01), None
patent: 3-68733 (1991-03-01), None
patent: 03068733 (1991-03-01), None
patent: 3-110042 (1991-05-01), None
patent: 04-224645 (1992-08-01), None
patent: 4-246141 (1992-09-01), None
patent: 7-310133 (1995-11-01), None
patent: 9-143598 (1997-06-01), None
patent: 10-081926 (1998-03-01), None
patent: 10-287921 (1998-10-01), None
patent: 2000-119775 (2000-04-01), None
patent: 2002-030364 (2002-01-01), None
patent: WO 94/01591 (1994-01-01), None
patent: 9810105 (1998-03-01), None
Japanese Office Action for Application No. H10-287921, mailed Jan. 22, 2002.
Japanese Office Action for Application No. H10-288590, mailed Jan. 29, 2002.
Protest mailed from the Japanese Patent Office on Jan. 16, 2002 for Application No. H10-288590.
Standard Specification for Copper-Zinc-Silicon Alloy Rod, Annual Book of ASTM Standards, 1993, pp. 536-538, vol. 02.01: Copper and Copper Alloys.
Copper Alloy No. C69400 (Silicon Red Brass), Standards Handbook, 1985, p. 143, 8th Edition, Copper Development Assn., New York.
Canadian Office Action for Application No. 2,303,512, mailed on Aug. 27, 2004.
European Office Action for Applications No. 98 953 070.4, mailed on Oct. 6, 2003.
Mannheim, R. et al. “Silicon brass: an alternative for lead-free faucets and fittings.” 1998. Second Annual Conference on Metallurgic and Materials Technology. Sao Paulo. STN Database No. 131.246354.
Partial European Search Report for Application No. 98 95 3071, dated Sep. 23, 2002.
Mannheim, R. et al. “Silicon brass: an alternative for lead-free faucets and fittings”, English Abstract, 1998.
“ASM Specialty Handbook: Copper and Copper Alloys,” ASM International, 2001, p. 545, Example C87800.
Patent Abstracts of Japan, English Abstract for JP 61-133357, 1986.
Patent Abstracts of Japan, English Abstract for JP 09-143598, 1997.
Patent Abstracts of Japan, English Abstract for JP 10-081926, 1998.
European Search Report for European Application No. EP 04 07 7560, dated Nov. 18, 2004.
European Search Report for European Application No. EP 04 07 7561, dated Dec. 12, 2004.
Griffin & Szipl, P.C.
Ip Sikyin
Sambo Copper Alloy Co., Ltd.
LandOfFree
Copper/zinc alloys having low levels of lead and good... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Copper/zinc alloys having low levels of lead and good..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copper/zinc alloys having low levels of lead and good... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3706303