DE60005535T2 - Ölnebelresistenter filter mit nicht abfallender effizienz - Google Patents
Ölnebelresistenter filter mit nicht abfallender effizienz Download PDFInfo
- Publication number
- DE60005535T2 DE60005535T2 DE60005535T DE60005535T DE60005535T2 DE 60005535 T2 DE60005535 T2 DE 60005535T2 DE 60005535 T DE60005535 T DE 60005535T DE 60005535 T DE60005535 T DE 60005535T DE 60005535 T2 DE60005535 T2 DE 60005535T2
- Authority
- DE
- Germany
- Prior art keywords
- filter
- filter layer
- electret
- electret filter
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003595 mist Substances 0.000 title claims description 10
- 238000012360 testing method Methods 0.000 claims description 63
- 230000035515 penetration Effects 0.000 claims description 51
- 239000000835 fiber Substances 0.000 claims description 49
- 239000002861 polymer material Substances 0.000 claims description 35
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- 238000002844 melting Methods 0.000 claims description 15
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- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 claims 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 230000000241 respiratory effect Effects 0.000 claims 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 64
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 64
- 239000007789 gas Substances 0.000 description 34
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
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- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 239000002594 sorbent Substances 0.000 description 2
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- 235000020679 tap water Nutrition 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
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- 238000004378 air conditioning Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
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- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- AQYSYJUIMQTRMV-UHFFFAOYSA-N hypofluorous acid Chemical class FO AQYSYJUIMQTRMV-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
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- 230000036961 partial effect Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 150000004885 piperazines Chemical class 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2262—Coating or impregnation is oil repellent but not oil or stain release
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2262—Coating or impregnation is oil repellent but not oil or stain release
- Y10T442/227—Fluorocarbon containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/68—Melt-blown nonwoven fabric
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Electrostatic Separation (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US377262 | 1999-08-19 | ||
| US09/377,262 US6627563B1 (en) | 1999-08-19 | 1999-08-19 | Oily-mist resistant filter that has nondecreasing efficiency |
| PCT/US2000/019432 WO2001014042A1 (en) | 1999-08-19 | 2000-07-17 | Oily-mist resistant filter that has nondecreasing efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60005535D1 DE60005535D1 (de) | 2003-10-30 |
| DE60005535T2 true DE60005535T2 (de) | 2004-06-24 |
Family
ID=23488417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60005535T Expired - Fee Related DE60005535T2 (de) | 1999-08-19 | 2000-07-17 | Ölnebelresistenter filter mit nicht abfallender effizienz |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US6627563B1 (enExample) |
| EP (1) | EP1207953B1 (enExample) |
| JP (1) | JP4584516B2 (enExample) |
| KR (1) | KR100697161B1 (enExample) |
| CN (1) | CN1311889C (enExample) |
| AR (1) | AR025305A1 (enExample) |
| AT (1) | ATE250451T1 (enExample) |
| AU (1) | AU755433B2 (enExample) |
| BR (1) | BR0013360A (enExample) |
| CA (1) | CA2381060A1 (enExample) |
| DE (1) | DE60005535T2 (enExample) |
| HK (1) | HK1047555B (enExample) |
| MX (1) | MXPA02001659A (enExample) |
| NO (1) | NO20020769L (enExample) |
| PL (1) | PL198520B1 (enExample) |
| TW (1) | TW510814B (enExample) |
| WO (1) | WO2001014042A1 (enExample) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE554842T1 (de) * | 2002-09-16 | 2012-05-15 | Triomed Innovations Corp | Elektrostatisch geladenes filtermedium mit eingearbeitetem wirkstoff |
| RU2342894C2 (ru) * | 2004-04-23 | 2009-01-10 | Мацушита Электрик Уорк, Лтд. | Тепловентилятор с электростатическим водораспылительным устройством |
| US7320722B2 (en) * | 2004-10-29 | 2008-01-22 | 3M Innovative Properties Company | Respiratory protection device that has rapid threaded clean air source attachment |
| US7419526B2 (en) * | 2005-03-03 | 2008-09-02 | 3M Innovative Properties Company | Conformal filter cartridges and methods |
| KR20070107109A (ko) * | 2005-03-07 | 2007-11-06 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 차량 객실부 공기 필터 장치 |
| EP1945445A4 (en) * | 2005-10-19 | 2012-05-30 | 3M Innovative Properties Co | MULTILAYER ARTICLES WITH SOUND DAMPING PROPERTIES AND METHOD FOR THE PRODUCTION AND USE THEREOF |
| FI119280B (fi) | 2006-05-18 | 2008-09-30 | Valtion Teknillinen | Suodatin ja uudet menetelmät |
| CN101495248A (zh) * | 2006-07-07 | 2009-07-29 | Fsi国际公司 | 液体气溶胶颗粒去除方法 |
| US8438867B2 (en) * | 2006-08-25 | 2013-05-14 | David Colwell | Personal or spot area environmental management systems and apparatuses |
| US7956497B2 (en) * | 2006-09-29 | 2011-06-07 | Sanyo Electric Co., Ltd. | Electret device and electrostatic induction conversion apparatus comprising the same |
| JP5346301B2 (ja) | 2007-02-28 | 2013-11-20 | ホリングワース・アンド・ボーズ・カンパニー | 波形フィルタ材およびフィルタ要素 |
| US8257459B2 (en) * | 2007-02-28 | 2012-09-04 | Hollingsworth & Vose Company | Waved filter media and elements |
| US8202340B2 (en) * | 2007-02-28 | 2012-06-19 | Hollingsworth & Vose Company | Waved filter media and elements |
| CN101820968A (zh) * | 2007-07-26 | 2010-09-01 | 3M创新有限公司 | 高度带电且电荷稳定的纳米纤维网 |
| CA2747782A1 (en) * | 2008-12-22 | 2010-07-01 | 3M Innovative Properties Company | Compact multigas filter |
| US20100252047A1 (en) * | 2009-04-03 | 2010-10-07 | Kirk Seth M | Remote fluorination of fibrous filter webs |
| JP5475541B2 (ja) * | 2010-05-07 | 2014-04-16 | 日本バイリーン株式会社 | 帯電フィルタ及びマスク |
| WO2012025451A1 (en) | 2010-08-23 | 2012-03-01 | Fiberweb Corovin Gmbh | Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use |
| US9266068B2 (en) | 2010-11-08 | 2016-02-23 | American Air Filter Company, Inc. | Aerosol generator for EPTFE filter testing and method of use |
| JP5917538B2 (ja) * | 2010-11-08 | 2016-05-18 | エーエーエフ−マックウェイ インコーポレイテッド ディー／ビー／エー エーエーエフ インターナショナル | 無菌薬学用ｅＰＴＦＥフィルタおよび使用方法 |
| BR112014002143A2 (pt) | 2011-08-01 | 2017-02-21 | 3M Innovative Properties Co | conjunto respiratório que inclui mecanismo de trava |
| US9700743B2 (en) | 2012-07-31 | 2017-07-11 | 3M Innovative Properties Company | Respiratory assembly including latching mechanism |
| US9510626B2 (en) | 2013-02-01 | 2016-12-06 | 3M Innovative Properties Company | Sleeve-fit respirator cartridge |
| US10213716B2 (en) * | 2014-04-04 | 2019-02-26 | Toyobo Co., Ltd. | Electret |
| US10441909B2 (en) | 2014-06-25 | 2019-10-15 | Hollingsworth & Vose Company | Filter media including oriented fibers |
| US10343095B2 (en) * | 2014-12-19 | 2019-07-09 | Hollingsworth & Vose Company | Filter media comprising a pre-filter layer |
| US10561972B2 (en) | 2015-09-18 | 2020-02-18 | Hollingsworth & Vose Company | Filter media including a waved filtration layer |
| US10449474B2 (en) | 2015-09-18 | 2019-10-22 | Hollingsworth & Vose Company | Filter media including a waved filtration layer |
| KR102314307B1 (ko) * | 2015-10-02 | 2021-10-20 | 도요보 가부시키가이샤 | 일렉트릿 및 일렉트릿 필터 |
| EP3419736A4 (en) | 2016-02-26 | 2019-10-23 | 3M Innovative Properties Company | AIR CONDITIONING FILTER AND METHOD OF MANUFACTURING THEREOF |
| US12420221B2 (en) | 2016-07-01 | 2025-09-23 | Hollingsworth & Vose Company | Multi-layered electret-containing filtration media |
| US11077394B2 (en) | 2017-02-21 | 2021-08-03 | Hollingsworth & Vose Company | Electret-containing filter media |
| US10814261B2 (en) | 2017-02-21 | 2020-10-27 | Hollingsworth & Vose Company | Electret-containing filter media |
| KR200484737Y1 (ko) * | 2017-05-26 | 2017-10-18 | 이시영 | 오염공기 정화용 집진 필터 |
| TWI672346B (zh) * | 2017-11-30 | 2019-09-21 | 財團法人紡織產業綜合研究所 | 濾材 |
| CN108635966A (zh) * | 2018-04-24 | 2018-10-12 | 华中科技大学 | 一种纳米纤维薄膜过滤材料的制备方法及其产品 |
| BR112021020488A2 (pt) | 2019-05-01 | 2022-02-15 | Ascend Performance Mat Operations Llc | Meio filtrante compreendendo camada de nanofibra de poliamida |
| CN114173904A (zh) * | 2019-06-28 | 2022-03-11 | 3M创新有限公司 | 过滤器组件、预过滤器组件和包括它们的呼吸器 |
| CN111330355B (zh) * | 2020-02-28 | 2022-06-14 | 厦门理工学院 | 一种驻极纳米纤维高效过滤材料及其制备方法 |
| US11992585B2 (en) | 2020-03-13 | 2024-05-28 | Julian HENLEY | Electro-ionic devices for improved protection from airborne biopathogens |
| US12017232B2 (en) | 2020-03-13 | 2024-06-25 | Julian HENLEY | Electro-ionic mask devices for improved protection from airborne biopathogens |
| WO2021231745A1 (en) * | 2020-05-13 | 2021-11-18 | D. Wheatley Enterprises, Inc. | Integrated respiratory and eye protective system |
| WO2022009028A1 (en) * | 2020-07-08 | 2022-01-13 | 3M Innovative Properties Company | Pleated filtration assembly comprising spunbonded prefilter |
| CN117180853B (zh) * | 2023-09-19 | 2024-05-24 | 佛山市芯耀环保科技有限公司 | 一种油雾吸附复合材料及其制备方法和应用 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL160303C (nl) | 1974-03-25 | 1979-10-15 | Verto Nv | Werkwijze voor het vervaardigen van een vezelfilter. |
| CA1073648A (en) | 1976-08-02 | 1980-03-18 | Edward R. Hauser | Web of blended microfibers and crimped bulking fibers |
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| US4536440A (en) | 1984-03-27 | 1985-08-20 | Minnesota Mining And Manufacturing Company | Molded fibrous filtration products |
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| US4874399A (en) * | 1988-01-25 | 1989-10-17 | Minnesota Mining And Manufacturing Company | Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene) |
| JP2574670Y2 (ja) * | 1990-06-13 | 1998-06-18 | 日本バイリーン株式会社 | エアフィルター |
| US5401446A (en) | 1992-10-09 | 1995-03-28 | The University Of Tennessee Research Corporation | Method and apparatus for the electrostatic charging of a web or film |
| AU669420B2 (en) | 1993-03-26 | 1996-06-06 | Minnesota Mining And Manufacturing Company | Oily mist resistant electret filter media |
| ES2128590T3 (es) * | 1993-08-17 | 1999-05-16 | Minnesota Mining & Mfg | Metodo para cargar medios filtrantes con electretos. |
| CN2206142Y (zh) * | 1994-10-19 | 1995-08-30 | 杨天寿 | 精滤器 |
| US5645627A (en) * | 1995-02-28 | 1997-07-08 | Hollingsworth & Vose Company | Charge stabilized electret filter media |
| US5908598A (en) | 1995-08-14 | 1999-06-01 | Minnesota Mining And Manufacturing Company | Fibrous webs having enhanced electret properties |
| US5817584A (en) * | 1995-12-22 | 1998-10-06 | Kimberly-Clark Worldwide, Inc. | High efficiency breathing mask fabrics |
| JP3566477B2 (ja) * | 1996-12-26 | 2004-09-15 | 興研株式会社 | 静電フィルター |
| US6238466B1 (en) | 1997-10-01 | 2001-05-29 | 3M Innovative Properties Company | Electret articles and filters with increased oily mist resistance |
-
1999
- 1999-08-19 US US09/377,262 patent/US6627563B1/en not_active Expired - Lifetime
-
2000
- 2000-07-17 AT AT00950395T patent/ATE250451T1/de not_active IP Right Cessation
- 2000-07-17 CN CNB008117993A patent/CN1311889C/zh not_active Expired - Fee Related
- 2000-07-17 KR KR1020027002097A patent/KR100697161B1/ko not_active Expired - Fee Related
- 2000-07-17 CA CA002381060A patent/CA2381060A1/en not_active Abandoned
- 2000-07-17 DE DE60005535T patent/DE60005535T2/de not_active Expired - Fee Related
- 2000-07-17 JP JP2001518172A patent/JP4584516B2/ja not_active Expired - Fee Related
- 2000-07-17 BR BR0013360-4A patent/BR0013360A/pt not_active IP Right Cessation
- 2000-07-17 WO PCT/US2000/019432 patent/WO2001014042A1/en not_active Ceased
- 2000-07-17 EP EP00950395A patent/EP1207953B1/en not_active Expired - Lifetime
- 2000-07-17 MX MXPA02001659A patent/MXPA02001659A/es active IP Right Grant
- 2000-07-17 PL PL353456A patent/PL198520B1/pl not_active IP Right Cessation
- 2000-07-17 HK HK02107583.6A patent/HK1047555B/en not_active IP Right Cessation
- 2000-07-17 AU AU63506/00A patent/AU755433B2/en not_active Ceased
- 2000-08-07 TW TW089115865A patent/TW510814B/zh active
- 2000-08-17 AR ARP000104250A patent/AR025305A1/es active IP Right Grant
-
2002
- 2002-02-15 NO NO20020769A patent/NO20020769L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU6350600A (en) | 2001-03-19 |
| AR025305A1 (es) | 2002-11-20 |
| HK1047555B (en) | 2004-10-15 |
| JP2003524519A (ja) | 2003-08-19 |
| NO20020769D0 (no) | 2002-02-15 |
| CN1370091A (zh) | 2002-09-18 |
| CN1311889C (zh) | 2007-04-25 |
| NO20020769L (no) | 2002-04-19 |
| JP4584516B2 (ja) | 2010-11-24 |
| EP1207953B1 (en) | 2003-09-24 |
| HK1047555A1 (en) | 2003-02-28 |
| ATE250451T1 (de) | 2003-10-15 |
| MXPA02001659A (es) | 2002-10-23 |
| KR100697161B1 (ko) | 2007-03-22 |
| CA2381060A1 (en) | 2001-03-01 |
| AU755433B2 (en) | 2002-12-12 |
| KR20020022814A (ko) | 2002-03-27 |
| BR0013360A (pt) | 2002-04-30 |
| PL353456A1 (en) | 2003-11-17 |
| EP1207953A1 (en) | 2002-05-29 |
| DE60005535D1 (de) | 2003-10-30 |
| PL198520B1 (pl) | 2008-06-30 |
| US6627563B1 (en) | 2003-09-30 |
| WO2001014042A1 (en) | 2001-03-01 |
| TW510814B (en) | 2002-11-21 |
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| 8339 | Ceased/non-payment of the annual fee |