Carbon fiber filters
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United States of America Patent
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Feb 8, 2005
Grant Date -
Mar 4, 2004
app pub date -
Aug 27, 2003
filing date -
Jul 2, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a filter comprised of activated carbon fibers, wherein said filter has a Virus Removal Index (hereafter 'VRI') of at least about 99%, as measured in accordance with the test method described in the specification. The filter may comprise unbound fibers, or the fibers may be bound with a binder to form a composite of fibers. Also disclosed is a method of removing viruses from a liquid, the method comprising contacting the liquid with a filter comprising activated carbon fibers wherein said filter has a VRI of at least about 99%. Also described is an article of manufacture comprising: (a) a filter comprising activated carbon fibers, wherein said filter has a VRI of at least about 99%; and (b) instructions which inform a user that the filter may be used to remove viruses from a liquid.
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