US5468536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorbent articles
Assignee: 3M Co
•
Filing: 1994-08-29
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Granted: 1995-11-21
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Expires: 2014-08-29
Abstract
Abstract A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent microfibers layers, the layers being bonded to each other by entanglement of fibers between adjacent layers. The boom further contains ion exchange resin, selectively absorbent particulate material, catalytic agent or selectively reactive particulate material.
Inventors
- 👤 William C. Whitcomb
- 👤 Thomas I. Insley
- 👤 Simon S. Fung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:52
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28023; B01J20/28028; B01J20/28033; B01J20/28035; D04H1/40; D04H1/54; D04H1/56; D04H5/00; D04H5/06; C; C02; C02F; C02F1/00; C02F1/28; C02F1/42; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924; Y10S423/00; Y10S423/09; Y10S423/14; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/249921; Y10T428/249953; Y10T428/249986; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/626; Y10T442/699
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfibers layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and ion exchange, selectively absorbent, selectively reactive or catalytic particulate material.
Claim 2
Dependent Claim
47 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfibers layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and ion exchange, selectively absorbent, selectively reactive or catalytic particulate material.
Claim 3
Dependent Claim
14 words
The article of claim 1 wherein said ion exchange particulate material is sulfonated styrene-divinylbenzene.
Claim 4
Dependent Claim
21 words
The article of claim 1 wherein said particulate material is present in an amount of about 1 to 95 weight percent.
Claim 5
Dependent Claim
41 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and selectively absorbent particulate chitosan.
Claim 6
Dependent Claim
41 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and selectively absorbent particulate chitosan.
Claim 7
Dependent Claim
42 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and selectively reactive particulate elemental iron.
Claim 8
Dependent Claim
42 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and selectively reactive particulate elemental iron.
Claim 9
Dependent Claim
39 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and palladium-on-carbon particulate.
Claim 10
Dependent Claim
39 words
A microfibrous sorbent article comprising an elongate boom having a substantially oval cross-section, said boom being formed of multiple adjacent microfiber layers, said layers being bonded to each other by entanglement of fibers between adjacent layers and palladium-on-carbon particulate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |