HK1014665A1 - Androstanes and pregnanes for allosteric modulation of gaba receptor - Google Patents
Androstanes and pregnanes for allosteric modulation of gaba receptorInfo
- Publication number
- HK1014665A1 HK1014665A1 HK98116032A HK98116032A HK1014665A1 HK 1014665 A1 HK1014665 A1 HK 1014665A1 HK 98116032 A HK98116032 A HK 98116032A HK 98116032 A HK98116032 A HK 98116032A HK 1014665 A1 HK1014665 A1 HK 1014665A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- androstanes
- pregnanes
- gaba receptor
- allosteric modulation
- receptor
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/565—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/20—Hypnotics; Sedatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/22—Anxiolytics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/24—Antidepressants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J17/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, having an oxygen-containing hetero ring not condensed with the cyclopenta(a)hydrophenanthrene skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J31/00—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring
- C07J31/006—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring not covered by C07J31/003
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J33/00—Normal steroids having a sulfur-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
- C07J33/002—Normal steroids having a sulfur-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton not condensed
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
- C07J41/0033—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005
- C07J41/005—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005 the 17-beta position being substituted by an uninterrupted chain of only two carbon atoms, e.g. pregnane derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
- C07J41/0033—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005
- C07J41/0094—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005 containing nitrile radicals, including thiocyanide radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J43/00—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
- C07J43/003—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton not condensed
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
- C07J5/0007—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond not substituted in position 17 alfa
- C07J5/0015—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond not substituted in position 17 alfa not substituted in position 16
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J51/00—Normal steroids with unmodified cyclopenta(a)hydrophenanthrene skeleton not provided for in groups C07J1/00 - C07J43/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
- C07J7/0005—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21
- C07J7/001—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group
- C07J7/0015—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group not substituted in position 17 alfa
- C07J7/002—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms not substituted in position 21 substituted in position 20 by a keto group not substituted in position 17 alfa not substituted in position 16
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
- C07J7/008—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms substituted in position 21
- C07J7/0085—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms substituted in position 21 by an halogen atom
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19691994A | 1994-02-14 | 1994-02-14 | |
US34692794A | 1994-11-23 | 1994-11-23 | |
PCT/US1995/001712 WO1995021617A1 (en) | 1994-02-14 | 1995-02-14 | Androstanes and pregnanes for allosteric modulation of gaba receptor |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1014665A1 true HK1014665A1 (en) | 1999-09-30 |
Family
ID=26892391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98116032A HK1014665A1 (en) | 1994-02-14 | 1998-12-28 | Androstanes and pregnanes for allosteric modulation of gaba receptor |
Country Status (18)
Country | Link |
---|---|
EP (2) | EP1038880B1 (xx) |
JP (1) | JP4066272B2 (xx) |
KR (1) | KR100338287B1 (xx) |
AT (2) | ATE195654T1 (xx) |
AU (1) | AU691905B2 (xx) |
BR (1) | BR9506779A (xx) |
CA (1) | CA2183231A1 (xx) |
DE (2) | DE69518509T2 (xx) |
DK (2) | DK1038880T3 (xx) |
ES (2) | ES2296594T3 (xx) |
FI (2) | FI118008B (xx) |
GR (1) | GR3034810T3 (xx) |
HK (1) | HK1014665A1 (xx) |
IL (1) | IL112638A (xx) |
NO (1) | NO308307B1 (xx) |
NZ (1) | NZ282939A (xx) |
PT (2) | PT1038880E (xx) |
WO (1) | WO1995021617A1 (xx) |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
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PT837874E (pt) * | 1995-06-06 | 2005-03-31 | Euro Celtique Sa | Esteroides neuroactivos da serie androstano e pregnano |
US6780853B1 (en) | 1995-06-06 | 2004-08-24 | Euro-Celtique S.A. | Neuroactive steroids of the androstane and pregnane series |
US20010051599A1 (en) | 1997-05-02 | 2001-12-13 | Michael Z. Kagan | Pregnan-3-ol-20-ones |
EP1449846A1 (en) * | 1999-04-29 | 2004-08-25 | Euro-Celtique S.A. | 3-alpha Hydroxy-3-beta methoxymethyl-21-heterocycle substituted steriods with anaesthetic activity |
YU77701A (sh) * | 1999-04-29 | 2005-07-19 | Euro-Celtique S.A. | 3-α-HIDROKSI-3Гџ-METOKSIMETIL-21-HETEROCIKLIČNO SUPSTITUISANI STEROIDI SA ANESTETIČKIM DEJSTVOM |
JP2001039954A (ja) * | 1999-05-24 | 2001-02-13 | Tomono Agrica Co Ltd | ヘテロ環誘導体 |
DE60045751D1 (de) | 1999-09-30 | 2011-04-28 | Harbor Biosciences Inc | Therapeutische Behandlung androgenrezeptorbedingter Leiden |
AU2583401A (en) | 1999-12-20 | 2001-07-03 | Cocensys, Inc. | Process for producing nanometer particles by fluid bed spray-drying |
US8771740B2 (en) | 1999-12-20 | 2014-07-08 | Nicholas J. Kerkhof | Process for producing nanoparticles by spray drying |
US8569275B2 (en) | 2002-08-28 | 2013-10-29 | Harbor Therapeutics, Inc. | Steroids having 7-oxgen and 17-heteroaryl substitution |
EP2263675A3 (en) * | 2005-06-09 | 2011-05-18 | Euro-Celtique S.A. | Pharmaceutical compositions of a neuroactive steroid and uses thereof |
EP2258357A3 (en) | 2005-08-26 | 2011-04-06 | Braincells, Inc. | Neurogenesis with acetylcholinesterase inhibitor |
EP2275095A3 (en) | 2005-08-26 | 2011-08-17 | Braincells, Inc. | Neurogenesis by muscarinic receptor modulation |
EP2377530A3 (en) | 2005-10-21 | 2012-06-20 | Braincells, Inc. | Modulation of neurogenesis by PDE inhibition |
EP2314289A1 (en) | 2005-10-31 | 2011-04-27 | Braincells, Inc. | Gaba receptor mediated modulation of neurogenesis |
US20100216734A1 (en) | 2006-03-08 | 2010-08-26 | Braincells, Inc. | Modulation of neurogenesis by nootropic agents |
WO2007134136A2 (en) | 2006-05-09 | 2007-11-22 | Braincells, Inc. | Neurogenesis by modulating angiotensin |
CA2651862A1 (en) | 2006-05-09 | 2007-11-22 | Braincells, Inc. | 5 ht receptor mediated neurogenesis |
JP2010502722A (ja) | 2006-09-08 | 2010-01-28 | ブレインセルス,インコーポレイティド | 4−アシルアミノピリジン誘導体を含む組み合わせ |
US20100184806A1 (en) | 2006-09-19 | 2010-07-22 | Braincells, Inc. | Modulation of neurogenesis by ppar agents |
RU2469042C2 (ru) * | 2006-09-19 | 2012-12-10 | Зольвай Фармасьютиклз Гмбх | Терапевтически активные триазолы и их использование |
DK2792681T3 (en) | 2006-11-21 | 2017-01-23 | Umecrine Ab | Use of Pregnancy and Androstan Steroids in the Preparation of a Pharmaceutical Composition for the Treatment of CNS Disorders. |
JP5663303B2 (ja) * | 2007-06-15 | 2015-02-04 | リサーチ トライアングル インスティテュート | Gabaレセプタークロライドイオノフォアの潜在的アロステリック調節特性を有するアンドロスタンステロイドおよびプレグナンステロイド |
WO2010099217A1 (en) | 2009-02-25 | 2010-09-02 | Braincells, Inc. | Modulation of neurogenesis using d-cycloserine combinations |
CZ302050B6 (cs) * | 2009-08-04 | 2010-09-15 | Ústav organické chemie a biochemie, Akademie ved CR, v.v.i. | 3alfa-Hydroxy-21ksí,22-oxido-21-homo-5alfa-pregnan-20-on, zpusob jeho výroby a jeho použití |
PT2753632T (pt) | 2011-09-08 | 2023-08-17 | Sage Therapeutics Inc | Esteróides neuroactivos, composições e respectivas utilizações |
WO2013043985A1 (en) | 2011-09-23 | 2013-03-28 | The Regents Of The University Of California | Edible oils to enhance delivery of orally administered steroids |
ES2738526T3 (es) | 2011-10-14 | 2020-01-23 | Sage Therapeutics Inc | Compuestos 19-norpregnano 3,3-disustituidos, composiciones y usos de los mismos |
PL2806877T3 (pl) | 2012-01-23 | 2020-06-01 | Sage Therapeutics, Inc. | Formulacje neuroaktywnego steroidu zawierające kompleks allopregnanolonu i eteru sulfobutylowego beta-cyklodekstryny |
CN102702126B (zh) * | 2012-04-26 | 2014-08-06 | 四川大学华西医院 | 一种可用于麻醉剂的化合物 |
JP2016501876A (ja) | 2012-11-30 | 2016-01-21 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | ステロイドの抗痙攣活性 |
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US20160068563A1 (en) | 2013-04-17 | 2016-03-10 | Boyd L. Harrison | 19-nor neuroactive steroids and methods of use thereof |
JP6470258B2 (ja) * | 2013-04-17 | 2019-02-13 | セージ セラピューティクス, インコーポレイテッド | 19−ノルc3,3−ジ置換c21−n−ピラゾリルステロイドおよびその使用方法 |
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DK3021852T3 (da) | 2013-07-19 | 2021-03-15 | Sage Therapeutics Inc | Neuroaktive steroider, sammensætninger og anvendelser deraf |
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US10172870B2 (en) | 2014-09-02 | 2019-01-08 | The Texas A&M University System | Method of treating organophosphate intoxication by administration of neurosteroids |
TWI762436B (zh) * | 2014-10-16 | 2022-05-01 | 美商賽吉醫療公司 | 用於治療中樞神經系統(cns)病症之組合物及方法 |
JP6742308B2 (ja) | 2014-10-16 | 2020-08-19 | セージ セラピューティクス, インコーポレイテッド | Cns障害を処置するための組成物および方法 |
DK3224269T3 (da) * | 2014-11-27 | 2020-05-25 | Sage Therapeutics Inc | Sammensætninger og fremgangsmåder til behandling af cns-forstyrrelser |
DK3250210T3 (da) | 2015-01-26 | 2021-03-08 | Sage Therapeutics Inc | Sammensætninger og fremgangsmåder til behandling af cns-forstyrrelser |
ES2935476T3 (es) | 2015-02-20 | 2023-03-07 | Sage Therapeutics Inc | Esteroides neuroactivos, composiciones y usos de los mismos |
AU2016289965B2 (en) | 2015-07-06 | 2021-09-09 | Sage Therapeutics, Inc. | Oxysterols and methods of use thereof |
KR20180026743A (ko) | 2015-07-06 | 2018-03-13 | 세이지 테라퓨틱스, 인크. | 옥시스테롤 및 그의 사용 방법 |
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US9637514B1 (en) | 2015-10-26 | 2017-05-02 | MAX BioPharma, Inc. | Oxysterols and hedgehog signaling |
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IL309259A (en) | 2016-07-11 | 2024-02-01 | Sage Therapeutics Inc | C17, C20 and C21 converted neuroactive steroids and methods of using them |
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CN110267966B (zh) | 2016-10-18 | 2022-07-08 | 萨奇治疗股份有限公司 | 氧甾醇及其使用方法 |
JP2021523938A (ja) * | 2018-05-04 | 2021-09-09 | アセラス ファーマシュウティカルズ コーポレーション | 神経ステロイド誘導体およびその使用 |
CN109503694A (zh) * | 2018-11-21 | 2019-03-22 | 苏州闻天医药科技有限公司 | 一种新型gabaa受体调节剂及其用途 |
AU2020205368A1 (en) * | 2019-01-08 | 2021-08-05 | Chengdu kanghong pharmaceutical co ltd | Steroid compounds, uses and process for preparation therefor |
CN111410673A (zh) * | 2019-01-08 | 2020-07-14 | 成都康弘药业集团股份有限公司 | 甾体类化合物、用途及其制备方法 |
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JP2022543576A (ja) * | 2019-08-07 | 2022-10-13 | 上▲海▼翰森生物医▲薬▼科技有限公司 | ステロイド誘導体調節因子の塩及び結晶形態 |
CN112341511A (zh) * | 2019-08-09 | 2021-02-09 | 南京诺瑞特医药科技有限公司 | 3-羟基-5-孕烷-20-酮衍生物及其用途 |
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Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274179A (en) * | 1964-03-19 | 1966-09-20 | Merck & Co Inc | 3-haloethynyl-3-hydroxy derivatives of the androstane-17-one and pregnane-20-one series |
US3953429A (en) * | 1970-12-17 | 1976-04-27 | Glaxo Laboratories Limited | Anaesthetic steroids of the androstance and pregnane series |
GB1430942A (en) * | 1972-05-05 | 1976-04-07 | Glaxo Lab Ltd | 21-substituted 3alpha-hydroxy pregnanes |
US5232917A (en) * | 1987-08-25 | 1993-08-03 | University Of Southern California | Methods, compositions, and compounds for allosteric modulation of the GABA receptor by members of the androstane and pregnane series |
US5120723A (en) * | 1987-08-25 | 1992-06-09 | University Of Southern California | Method, compositions, and compounds for modulating brain excitability |
AU2657292A (en) * | 1991-09-13 | 1993-04-27 | Cocensys, Inc. | Novel gabaa receptor with steroid binding sites |
JP4008024B2 (ja) * | 1993-05-24 | 2007-11-14 | パーデュー、ファーマ、リミテッド、パートナーシップ | Gabaaレセプター複合体と相互作用させるための化合物 |
-
1995
- 1995-02-14 AU AU20901/95A patent/AU691905B2/en not_active Ceased
- 1995-02-14 KR KR1019960704396A patent/KR100338287B1/ko not_active IP Right Cessation
- 1995-02-14 IL IL11263895A patent/IL112638A/xx not_active IP Right Cessation
- 1995-02-14 PT PT00200119T patent/PT1038880E/pt unknown
- 1995-02-14 PT PT95913478T patent/PT752860E/pt unknown
- 1995-02-14 DE DE69518509T patent/DE69518509T2/de not_active Expired - Lifetime
- 1995-02-14 AT AT95913478T patent/ATE195654T1/de active
- 1995-02-14 DK DK00200119T patent/DK1038880T3/da active
- 1995-02-14 DE DE69535623T patent/DE69535623T2/de not_active Expired - Lifetime
- 1995-02-14 BR BR9506779A patent/BR9506779A/pt not_active IP Right Cessation
- 1995-02-14 NZ NZ282939A patent/NZ282939A/en not_active IP Right Cessation
- 1995-02-14 CA CA002183231A patent/CA2183231A1/en not_active Abandoned
- 1995-02-14 ES ES00200119T patent/ES2296594T3/es not_active Expired - Lifetime
- 1995-02-14 DK DK95913478T patent/DK0752860T3/da active
- 1995-02-14 ES ES95913478T patent/ES2151593T3/es not_active Expired - Lifetime
- 1995-02-14 WO PCT/US1995/001712 patent/WO1995021617A1/en active IP Right Grant
- 1995-02-14 JP JP52135695A patent/JP4066272B2/ja not_active Expired - Fee Related
- 1995-02-14 EP EP00200119A patent/EP1038880B1/en not_active Expired - Lifetime
- 1995-02-14 AT AT00200119T patent/ATE375993T1/de active
- 1995-02-14 EP EP95913478A patent/EP0752860B1/en not_active Expired - Lifetime
-
1996
- 1996-08-12 NO NO963355A patent/NO308307B1/no not_active IP Right Cessation
- 1996-08-13 FI FI963174A patent/FI118008B/fi not_active IP Right Cessation
-
1998
- 1998-12-28 HK HK98116032A patent/HK1014665A1/xx not_active IP Right Cessation
-
2000
- 2000-11-10 GR GR20000402497T patent/GR3034810T3/el unknown
-
2005
- 2005-12-09 FI FI20051271A patent/FI118687B/fi not_active IP Right Cessation
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PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20130214 |