Liquid purification or separation – Magnetic
Reexamination Certificate
2006-02-28
2009-02-24
Reifsnyder, David A (Department: 1797)
Liquid purification or separation
Magnetic
C210S223000, C210S489000, C210S498000, C210S500250, C210S510100, C055S486000
Reexamination Certificate
active
07494587
ABSTRACT:
A filter is made of a rubber having magnetism to attract metal paricles in a fluid for filtering impurities. The filter can be used in a hydraulic transmission system or even an air filter used in a semiconductor production.
REFERENCES:
patent: 1663298 (1928-03-01), Geer et al.
patent: 2959832 (1960-11-01), Baermann
patent: 6016036 (2000-01-01), Brailove
patent: 2007/0095738 (2007-05-01), Zhang
Tzeng Hsinn-Jyh
Yan Biing-Hwa
National Central University
Reifsnyder David A
Troxell Law Office PLLC
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