US Patent No: 7,090,712
Number of patents in Portfolio can not be more than 2000
Air filtration arrangements having fluted media construction and methods
Stats
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Aug 15, 2006
Issued date -
Apr 20, 2005
filing date -
11/110,625
serial no -
In Force
status
Importance
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Abstract
Filter arrangements include a barrier media in the form of fluted media treated with a deposit of fine fibers. The media is particularly advantageous in high temperature (greater than 140 to 240.degree. F.) systems. Such systems may include engine systems, gas turbine systems, and fuel cell systems. Filter arrangements may take the form of media packs having a circular cross-section or a racetrack shaped cross-section, or media packs formed in a panel configuration.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,820,646 Inline filter apparatus | 183 | 1996 | |
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| 5,902,364 Conical filter | 100 | 1996 | |
| D396098 Conical filter | 82 | 1997 | |
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| 4,223,101 Method of producing fibrous structure | 53 | 1978 | |
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| 4,929,502 Fibrillated fibers and articles made therefrom | 37 | 1986 | |
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| 5,324,558 Laminated tube | 21 | 1992 | |
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| 4,925,561 Composite planar and triangularly pleated filter element | 116 | 1989 | |
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| 4,370,290 Process for producing aromatic polyimide filaments | 37 | 1981 | |
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| 4,278,623 Ultra-fine fibers and method for making same | 37 | 1977 | |
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| 4,804,707 Impact resistant resin composition | 11 | 1987 | |
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| 5,273,565 Meltblown fabric | 43 | 1992 | |
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| 5,895,510 Air filter assembly | 36 | 1997 | |
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| 5,156,925 Hydrogen removal system for metal/air cell | 34 | 1991 | |
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| 4,842,924 Novel compositions based on reinforcement with microfibrillar networks of rigid-rod polymers | 32 | 1986 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 15, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 15, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |