DRY FORMED FILTERS AND METHODS OF MAKING THE SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Dec 11, 2014
app pub date -
May 6, 2014
filing date -
Jun 6, 2013
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
The disclosure includes, in some embodiments, a filter element that includes a first porous outer layer formed from a nonwoven material, a second porous outer layer formed from a nonwoven material, and at least one inner porous layer formed from a high loft nonwoven material (or other suitable material) disposed between the first porous outer layer and the second porous outer layer. The high loft nonwoven material has a three dimensional matrix formed by entangled and bonded fibers that cooperate to form a plurality of three dimensional interstices between the fibers for maintaining an open and tortuous flow path for fluid to pass through. The filter element also includes filter aid particles dispersed in the interstices of the high loft nonwoven material.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
GUSMER ENTERPRISES INC | 27 NORTH AVENUE EAST P O BOX 846 CRANFORD NJ 07016 |
International Classification(s)

- 2014 Application Filing Year
- B01D Class
- 3939 Applications Filed
- 3248 Patents Issued To-Date
- 82.46 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Menzies, Robert | Waupaca, US | 7 | 8 |
# of filed Patents : 7 Total Citations : 8 | |||
Tinkham, Robert L | Appleton, US | 4 | 7 |
# of filed Patents : 4 Total Citations : 7 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- B01D Class
- 9.70 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 11, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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