FILTER MATERIAL ABSORB HYDROCARBON
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Feb 10, 2005
filing date -
Apr 28, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A porous filter medium in a canister forms a filter for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a foam, nonwoven or collection of particles, and the filter has a butane working capacity (W/W %) of 4.0 percent or higher.
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Cited Art Landscape
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