GB1150445A - Hair Dyeing Compositions and Nitro Dyes for use therein - Google Patents

Hair Dyeing Compositions and Nitro Dyes for use therein

Info

Publication number
GB1150445A
GB1150445A GB19743/66A GB1974366A GB1150445A GB 1150445 A GB1150445 A GB 1150445A GB 19743/66 A GB19743/66 A GB 19743/66A GB 1974366 A GB1974366 A GB 1974366A GB 1150445 A GB1150445 A GB 1150445A
Authority
GB
United Kingdom
Prior art keywords
alkyl
alkylene
dyes
nhco
reacted
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
Application number
GB19743/66A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
P&G Hair Care Holding Inc
Original Assignee
Clairol Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Clairol Inc filed Critical Clairol Inc
Publication of GB1150445A publication Critical patent/GB1150445A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41Amines
    • A61K8/418Amines containing nitro groups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/06Preparations for styling the hair, e.g. by temporary shaping or colouring
    • A61Q5/065Preparations for temporary colouring the hair, e.g. direct dyes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • A61Q5/10Preparations for permanently dyeing the hair
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C235/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
    • C07C235/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
    • C07C235/04Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C235/10Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00Carboxylic acid nitriles
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06Esters of carbamic acids
    • C07C271/08Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/10Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/20Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by nitrogen atoms not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/04Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms
    • C07C275/06Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton
    • C07C275/14Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton being further substituted by nitrogen atoms not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C335/00Thioureas, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C335/04Derivatives of thiourea
    • C07C335/06Derivatives of thiourea having nitrogen atoms of thiourea groups bound to acyclic carbon atoms
    • C07C335/08Derivatives of thiourea having nitrogen atoms of thiourea groups bound to acyclic carbon atoms of a saturated carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)
GB19743/66A 1965-05-24 1966-05-04 Hair Dyeing Compositions and Nitro Dyes for use therein Expired GB1150445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45844365A 1965-05-24 1965-05-24

Publications (1)

Publication Number Publication Date
GB1150445A true GB1150445A (en) 1969-04-30

Family

ID=23820807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19743/66A Expired GB1150445A (en) 1965-05-24 1966-05-04 Hair Dyeing Compositions and Nitro Dyes for use therein

Country Status (7)

Country Link
US (1) US3629330A (cs)
CH (1) CH475006A (cs)
DE (1) DE1693051C3 (cs)
FR (1) FR1517715A (cs)
GB (1) GB1150445A (cs)
IT (1) IT941503B (cs)
SE (1) SE347431B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207690A1 (cs) * 1972-11-24 1974-06-21 Bristol Myers Co
FR2351648A1 (fr) * 1976-02-09 1977-12-16 Bristol Myers Co Composition pour eclaircir ou colorer les cheveux et contenant un agent oxydant et certaines amines quaternaires
US4402700A (en) * 1976-02-09 1983-09-06 Clairol Incorporated Composition for coloring hair containing an oxidizing agent and certain quaternary amines
US4532127A (en) * 1976-02-09 1985-07-30 Clairol Incorporated Composition for lightening or coloring hair containing an oxidizing agent and certain quaternary amines
WO1985003223A1 (fr) * 1984-01-26 1985-08-01 Wella Aktiengesellschaft UTILISATION DE COMPOSES DE p-UREIDOALKYLAMINO-NITROBENZENE DANS DES COLORANTS CAPILLAIRES ET NOUVEAUX COMPOSES DE p-UREIDOALKYLAMINO-NITROBENZENE
FR2571364A1 (fr) * 1984-10-09 1986-04-11 Oreal Nouveau procede de preparation de nitroparaphenylenediamines n,n'-disubstituees, nouvelles oxazolidones utilisees dans ce procede, nouvelles nitroparaphenylenediamines n,n'-disubstituees obtenues selon ce procede et compositions tinctoriales contenant les nitroparaphenylenediamines n,n'-disubstituees obtenues selon ledit procede
JP2720232B2 (ja) 1990-06-13 1998-03-04 富士写真フイルム株式会社 発色現像主薬、処理液組成物およびカラー画像形成方法
US8187340B2 (en) 2009-12-21 2012-05-29 Living Proof, Inc. Coloring agents and methods of use thereof

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804586A (en) * 1967-05-16 1974-04-16 Oreal Dyeing hair with aqueous solution of nitro p-phenylenediamines and composition therefor
US3944612A (en) * 1967-11-02 1976-03-16 Clairol Incorporated 4-Fluoro-3-nitro anilines
US3836326A (en) * 1970-11-18 1974-09-17 Gillette Co Dyeing hair with nitro-substituted phenylene compounds
CA1024071A (en) * 1972-08-09 1978-01-10 George Alperin Semi-permanent hair dye composition comprising a nitro-dye, a quaternary amine and certain n-oxyalkylated fatty acid amide
AR220089A1 (es) * 1972-08-09 1980-10-15 Bristol Myers Co Composicion para el tenido semipermanente del cabello
DE2241015A1 (de) * 1972-08-21 1974-02-28 Henkel & Cie Gmbh Alpha-cyanmethansulfonamidobenzolderivate
US4060544A (en) * 1972-12-27 1977-11-29 Gaf Corporation N-2-[N-(keto-tert-alkyl carbamyl)alkyl]phenylamines
FR2290186A1 (fr) * 1974-11-05 1976-06-04 Oreal Compositions tinctoriales pour cheveux humains et nouveaux etheroxydes entrant dans ces compositions
LU83686A1 (fr) * 1981-10-08 1983-06-08 Oreal Composition tinctoriale pour fibres keratiniques a base de colorants nitres benzeniques
DE3502991A1 (de) * 1984-07-20 1986-01-30 Hoechst Ag, 6230 Frankfurt Substituierte phenyloxethylsulfone und verfahren zu ihrer herstellung
LU85557A1 (fr) * 1984-09-27 1986-04-03 Oreal Composition tinctoriale pour fibres keratiniques renfermant au moins une nitro-2 paraphenylenediamine n-substituee cosolubilisee et procede de teinture de fibres keratiniques correspondant
DE3543020A1 (de) * 1985-12-05 1987-06-11 Wella Ag Verfahren zur herstellung von 4-(ethyl-(2'hydroxyethyl)-amino)-1-((2'-hydroxyethyl)-amino)-2-nitro-benzol
GB8724254D0 (en) * 1987-10-15 1987-11-18 Unilever Plc Hair treatment product
DE3917114C3 (de) * 1989-05-26 1996-08-14 Schwarzkopf Gmbh Hans Neue Nitro-p-phenylendiaminderivate, Verfahren zu ihrer Herstellung sowie Färbemittel für keratinische Fasern, die diese enthalten
DE4142132C1 (cs) * 1991-12-20 1993-05-27 Cassella Ag, 6000 Frankfurt, De
FR2713927B1 (fr) * 1993-12-22 1996-01-19 Oreal Procédé de coloration directe des fibres kératiniques humaines à l'aide de vapeur d'eau.
IL126933A0 (en) * 1997-12-08 1999-09-22 Bernardo Birnbaum Kisilevich A disinfectant composition
DE10120531A1 (de) * 2001-04-26 2002-10-31 Basf Ag Neue Reaktivfarbstoffe und deren Verwendung zum Färben von Substraten, welche nucleophile Gruppen enthalten
DE10260836A1 (de) * 2002-12-23 2004-07-01 Henkel Kgaa Neue Entwicklerkomponenten
JP2007500245A (ja) * 2003-06-10 2007-01-11 スミスクライン ビーチャム コーポレーション 化合物
US7166137B2 (en) * 2003-11-12 2007-01-23 Revlon Consumer Products Corporation Methods, compositions, and kits for coloring hair
US7834063B2 (en) * 2004-10-13 2010-11-16 Glaxosmithkline Llc Benzonitryl and nitrobenzyl derivatives that modulate androgen receptors
US20070000070A1 (en) * 2005-06-30 2007-01-04 Vena Lou Ann C Method and kit for applying lowlights to hair
US8563489B2 (en) * 2007-12-12 2013-10-22 Chemtura Corporation Alkylated 1,3-benzenediamine compounds and methods for producing same
US20090156441A1 (en) * 2007-12-12 2009-06-18 Rowland Robert G Cycloalkyl phenylenediamines as deposit control agents for lubricants
US8530397B2 (en) * 2007-12-12 2013-09-10 Infineum International Limited Additive compositions
FR2925323B1 (fr) * 2007-12-21 2009-12-18 Oreal Procede de coloration en presence d'un agent oxydant et d'une amine organique particuliere et dispositif
FR2925311B1 (fr) * 2007-12-21 2009-12-18 Oreal Procede d'eclaircissement de fibres keratiniques humaines mettant en oeuvre une composition anhydre et une amine organique particuliere et dispositif approprie
FR2925307B1 (fr) 2007-12-21 2009-12-18 Oreal Procede de coloration directe eclaircissante ou d'oxydation en presence d'une amine organique particuliere et dispositif
FR2925308B1 (fr) * 2007-12-21 2009-12-18 Oreal Composition anhydre comprenant une amine organique, eclaircissement de fibres keratiniques humaines au moyen d'une telle composition et dispositif
US7909888B2 (en) * 2008-12-19 2011-03-22 L'oreal Process for dyeing or lightening human keratin fibers using an anhydrous composition and a monoethanolamine/basic amino acid mixture, and suitable device therefor
FR2940078B1 (fr) * 2008-12-19 2011-05-13 Oreal Composition comprenant un corps gras et un polymere cationique, procede de coloration la mettant en oeuvre et dispositifs
FR2940055B1 (fr) * 2008-12-19 2015-03-27 Oreal Composition de teinture d'oxydation des fibres keratiniques comprenant le para-aminophenol, du dipropyleneglycol, et un precurseur de colorant additionnel.
FR2940079B1 (fr) 2008-12-19 2011-02-18 Oreal Composition comprenant au moins un alcool gras solide, procede de coloration la mettant en oeuvre et dispositifs
FR2940092B1 (fr) * 2008-12-19 2011-02-18 Oreal Composition de teinture d'oxydation des fibres keratiniques comprenant un corps gras amide ou ester
FR2940108B1 (fr) * 2008-12-19 2011-04-29 Oreal Procede d'eclaircissement de matieres keratiniques mettant en oeuvre une composition anhydre comprenant un agent alcalin et une composition oxydante
FR2940104B1 (fr) * 2008-12-19 2011-08-19 Oreal Procede de traitement des cheveux mettant en oeuvre une emulsion directe comprenant un agent oxydant et une composition contenant un agent alcalin
EP2198832B1 (fr) * 2008-12-19 2017-01-25 L'Oréal Procédé d'éclaircissement de fibres kératiniques humaines mettant en oeuvre une composition anhydre et dispositif
BRPI0907287B1 (pt) * 2008-12-19 2018-01-02 L'oréal "processo de clareamento ou de coloração das fibras queratínicas e dispositivo com vários comportamentos"
FR2940102B1 (fr) * 2008-12-19 2016-03-11 Oreal Composition de teinture d'oxydation des fibres keratiniques comprenant un corps gras, un epaississant et un precurseur de colorant d'oxydation
FR2940061B1 (fr) * 2008-12-19 2011-03-04 Oreal Composition de teinture d'oxydation des fibres keratiniques comprenant un corps gras et un derive de diaminopyrazolone.
FR2940105B1 (fr) * 2008-12-19 2011-04-08 Oreal Composition comprenant un corps gras et un tensioactif oxyethylene particulier, procede de coloration la mettant en oeuvre et dispositifs
FR2940077B1 (fr) * 2008-12-19 2012-07-20 Oreal Procede de coloration eclaircissante de matieres keratiniques mettant en oeuvre une composition anhydre colorante comprenant un agent alcalin et une composition oxydante.
EP2198833B1 (fr) * 2008-12-19 2017-07-26 L'Oréal Procédé de coloration ou d'éclaircissement en présence d'une base inorganique et dispositif
FR2940101B1 (fr) 2008-12-19 2011-02-18 Oreal Composition de teinture d'oxydation de fibres keratiniques comprenant un corps gras et un derive 4,5-diaminopyrazole
FR2940100B1 (fr) * 2008-12-19 2011-02-18 Oreal Composition de teinture d'oxydation des fibres keratiniques comprenant un corps gras et la n,n bis (beta-hydroxyethyl)-paraphenylene diamine
FR2940090B1 (fr) * 2008-12-19 2011-02-25 Oreal Composition oxydante pour le traitement des fibres keratiniques comprenant une huile, un alcool gras et un alcool gras oxyalkylene
JP5815205B2 (ja) * 2008-12-19 2015-11-17 ロレアル 有機アミン及び無機塩基の存在下で、淡色化し、あるいは淡色化直接染色し、あるいは酸化染色する方法、及びそのためのデバイス
FR2940106B1 (fr) * 2008-12-19 2013-04-12 Oreal Composition comprenant un corps gras et un silicate, procede de coloration la mettant en oeuvre et dispositifs
FR2940107B1 (fr) * 2008-12-19 2011-03-18 Oreal Procede d'eclaircissement de matieres keratiniques mettant en oeuvre une emulsion comprenant un agent alcalin et une composition oxydante
FR2940067B1 (fr) * 2008-12-19 2011-02-25 Oreal Composition oxydante pour le traitement des fibres keratiniques comprenant un polymere cationique, un amide gras et un agent-oxygene
FR2940103B1 (fr) * 2008-12-19 2011-06-10 Oreal Procede de coloration eclaircissante de matieres keratiniques mettant en oeuvre une emulsion comprenant un colorant et un agent alcalin et une composition oxydante
EP2198843B1 (fr) * 2008-12-19 2017-09-13 L'Oréal Eclaircissement de fibres kératiniques humaines mettant en oeuvre une composition anhydre comprenant un melange monoethanolamine / acide amine basique et dispositif
FR2954160B1 (fr) * 2009-12-22 2012-03-30 Oreal Composition de coloration ou d'eclaircissement comprenant un corps gras et un polymere amphotere
FR2954121B1 (fr) 2009-12-22 2016-03-25 Oreal Agent de coloration et/ou de decoloration des fibres keratiniques en deux parties, comprenant un corps gras particulier et une reductone.
FR2954127B1 (fr) * 2009-12-22 2015-10-30 Oreal Agent de coloration et/ou de decoloration des fibres keratiniques en deux parties, comprenant un corps gras et un agent sequestrant.
FR2954159B1 (fr) * 2009-12-22 2012-02-10 Oreal Agent de coloration et/ou de decoloration des fibres keratiniques comprenant une composition comprenant un agent alcalinisant et une composition anhydre comprenant un oxydant, l'une ou l'autre des compositions pouvant contenir un corps gras
DE102016209468A1 (de) 2016-05-31 2017-11-30 Henkel Ag & Co. Kgaa Haar schonende Mittel und Verfahren zur oxidativen Haarfärbung oder Blondierung mit ausgewählten Dicarbonsäuren

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207690A1 (cs) * 1972-11-24 1974-06-21 Bristol Myers Co
FR2351648A1 (fr) * 1976-02-09 1977-12-16 Bristol Myers Co Composition pour eclaircir ou colorer les cheveux et contenant un agent oxydant et certaines amines quaternaires
US4402700A (en) * 1976-02-09 1983-09-06 Clairol Incorporated Composition for coloring hair containing an oxidizing agent and certain quaternary amines
US4532127A (en) * 1976-02-09 1985-07-30 Clairol Incorporated Composition for lightening or coloring hair containing an oxidizing agent and certain quaternary amines
AU572257B2 (en) * 1984-01-26 1988-05-05 Wella Aktiengesellschaft P-ureidoalkylamino-nitrobenzene compounds as hair colourants
EP0150765A3 (en) * 1984-01-26 1985-08-21 Wella Aktiengesellschaft Use of p-ureidoalkylamino nitrobenzene compounds in hair dyeing compositions and p-ureidoalkylamino nitrobenzene compounds
US4629467A (en) * 1984-01-26 1986-12-16 Wella Aktiengesellschaft Use of p-ureidoalkylamino-nitrobenzene derivatives in hair dyeing compositions and new p-ureidoalkylamino-nitrobenzene derivatives
WO1985003223A1 (fr) * 1984-01-26 1985-08-01 Wella Aktiengesellschaft UTILISATION DE COMPOSES DE p-UREIDOALKYLAMINO-NITROBENZENE DANS DES COLORANTS CAPILLAIRES ET NOUVEAUX COMPOSES DE p-UREIDOALKYLAMINO-NITROBENZENE
FR2571364A1 (fr) * 1984-10-09 1986-04-11 Oreal Nouveau procede de preparation de nitroparaphenylenediamines n,n'-disubstituees, nouvelles oxazolidones utilisees dans ce procede, nouvelles nitroparaphenylenediamines n,n'-disubstituees obtenues selon ce procede et compositions tinctoriales contenant les nitroparaphenylenediamines n,n'-disubstituees obtenues selon ledit procede
US4910341A (en) * 1984-10-09 1990-03-20 L'oreal Process for preparing N,N'-disubstituted nitro-para-phenylenediamines, N,N'-disubstituted nitro-para-phenylenediamines, and intermediate oxazolidones
JP2720232B2 (ja) 1990-06-13 1998-03-04 富士写真フイルム株式会社 発色現像主薬、処理液組成物およびカラー画像形成方法
US8187340B2 (en) 2009-12-21 2012-05-29 Living Proof, Inc. Coloring agents and methods of use thereof
US8444715B2 (en) 2009-12-21 2013-05-21 Living Proof, Inc. Coloring agents and methods of use thereof
EP2516555A4 (en) * 2009-12-21 2013-05-22 Living Proof Inc COLORING AGENT AND METHOD FOR USE THEREOF
US8758451B2 (en) 2009-12-21 2014-06-24 Living Proof, Inc. Coloring agents and methods of use thereof
US8932370B2 (en) 2009-12-21 2015-01-13 Living Proof, Inc. Coloring agents and methods of use thereof
US9248086B2 (en) 2009-12-21 2016-02-02 Living Proof, Inc. Coloring agents and methods of use thereof
AU2010339735B2 (en) * 2009-12-21 2016-04-14 Living Proof, Inc. Coloring agents and methods of use thereof
US9504637B2 (en) 2009-12-21 2016-11-29 Living Proof, Inc. Coloring agents and methods of use thereof

Also Published As

Publication number Publication date
US3629330A (en) 1971-12-21
DE1693051B2 (de) 1977-09-01
IT941503B (it) 1973-03-10
CH475006A (de) 1969-07-15
SE347431B (cs) 1972-08-07
FR1517715A (fr) 1968-03-22
DE1693051C3 (de) 1978-05-24
DE1693051A1 (de) 1971-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee