ES8105793A1 - Procedimiento para generar halogenos - Google Patents
Procedimiento para generar halogenosInfo
- Publication number
- ES8105793A1 ES8105793A1 ES493948A ES493948A ES8105793A1 ES 8105793 A1 ES8105793 A1 ES 8105793A1 ES 493948 A ES493948 A ES 493948A ES 493948 A ES493948 A ES 493948A ES 8105793 A1 ES8105793 A1 ES 8105793A1
- Authority
- ES
- Spain
- Prior art keywords
- diaphragm
- electrolyte
- electrolysis
- membrane
- layer
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Surgical Instruments (AREA)
- Cable Accessories (AREA)
Abstract
PROCEDIMIENTO PARA GENERAR HALOGENOS MEDIANTE ELECTROLISIS DE UNA SOLUCION ACUOSA DE UN HALOGENURO ELECTROLIZABLE. CONSISTE EN ELECTROLIZAR UN ELECTROLITO FORMADO POR UNA SOLUCION ACUOSA DE UN HALOGENURO CIRCULANTE EN UNA CAMARA DE ANODO (3,7), SEPARADA DE UNA CAMARA DE CATODO (10,14), QUE CONTIENE UN ELECTROLITO ACUOSO CIRCULANTE, MEDIANTE UNA MEMBRANA (5) PERMEABLE A LOS IONES, SIENDO AL MENOS UNO DE LOS ELECTRODOS, ANODO (7) O CATODO (14), UN CUERPO PERMEABLE A LOS GASES Y AL ELECTROLITO MANTENIDO EN CONTACTO, EN UNA PLURALIDAD DE PUNTOS, CON LA MEMBRANA (5) MEDIANTE UNA ESTERILLA ELECTROCONDUCTORA (13) RESILIENTEMENTE COMPRIMIBLE, ABIERTA AL FLUJO DE ELCTROLITO Y GAS, Y CAPAZ DE APLICAR UNA PRESION UNIFORMEMENTE DISTRIBUIDA SOBRE LA SUPERFICIE DE DICHA MEMBRANA (5). EN EL ANODO SE DESPRENDE EL HALOGENO EN ESTADO GASEOSO Y EN EL CATODO SE DESPRENDE GAS HIDROGENO. LA SOLUCION ACUOSA CIRCULANTE EN LA CAMARA DEL CATODO, QUE ABSORBE LOS IONES DEL HALOGENURO QUE PASAN A TRAVES DE LA MEMBRANA(5), SE MANTIENE CON UNA CONCENTRACION DE DICHOS IONES, DENTRO DE LIMITES PREFIJADOS. DE USO PREFERENTE EN LA OBTENCION DE HALOGENOS A PARTIR DE SUS SALES ALCALINAS. R
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT24919/79A IT1122699B (it) | 1979-08-03 | 1979-08-03 | Collettore elettrico resiliente e cella elettrochimica ad elettrolita solido comprendente lo stesso |
IT19502/80A IT1193893B (it) | 1980-01-28 | 1980-01-28 | Cella di elettrolisi e procedimento di elettrolisi di alogenuri in essa |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8105793A1 true ES8105793A1 (es) | 1981-06-16 |
ES493948A0 ES493948A0 (es) | 1981-06-16 |
Family
ID=26327188
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES493948A Granted ES493948A0 (es) | 1979-08-03 | 1980-08-01 | Procedimiento para generar halogenos |
ES499974A Expired ES8205880A1 (es) | 1979-08-03 | 1981-03-02 | Perfeccionamientos en celdas de electrolisis para generar halogenos |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES499974A Expired ES8205880A1 (es) | 1979-08-03 | 1981-03-02 | Perfeccionamientos en celdas de electrolisis para generar halogenos |
Country Status (27)
Country | Link |
---|---|
US (2) | US4340452A (es) |
AR (1) | AR226315A1 (es) |
AU (1) | AU529947B2 (es) |
BR (1) | BR8004848A (es) |
CA (1) | CA1219239A (es) |
CH (1) | CH646462A5 (es) |
CS (1) | CS237315B2 (es) |
DD (2) | DD201810A5 (es) |
DE (2) | DE3028970A1 (es) |
EG (1) | EG14586A (es) |
ES (2) | ES493948A0 (es) |
FI (1) | FI68429C (es) |
FR (2) | FR2463199B1 (es) |
GB (1) | GB2056493B (es) |
GR (1) | GR69342B (es) |
HU (1) | HU184798B (es) |
IL (1) | IL60369A (es) |
IN (1) | IN154318B (es) |
MX (2) | MX159843A (es) |
NL (2) | NL182232C (es) |
NO (1) | NO157544C (es) |
PH (1) | PH17445A (es) |
PL (1) | PL128849B1 (es) |
RO (1) | RO81917A (es) |
SE (2) | SE455508B (es) |
SK (1) | SK363585A3 (es) |
YU (1) | YU42534B (es) |
Families Citing this family (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1118243B (it) * | 1978-07-27 | 1986-02-24 | Elche Ltd | Cella di elettrolisi monopolare |
US4340452A (en) * | 1979-08-03 | 1982-07-20 | Oronzio deNora Elettrochimici S.p.A. | Novel electrolysis cell |
US4615775A (en) * | 1979-08-03 | 1986-10-07 | Oronzio De Nora | Electrolysis cell and method of generating halogen |
IT8025483A0 (it) * | 1980-10-21 | 1980-10-21 | Oronzio De Nora Impianti | Elettrocdi per celle ad elettrolita solido applicati sulla superficie di membrane scambiatrici di ioni e procedimentodi prparazione ed uso degli stessi. |
US4444632A (en) * | 1979-08-03 | 1984-04-24 | Oronzio Denora Impianti Elettrochimici S.P.A. | Electrolysis cell |
JPS57172927A (en) * | 1981-03-20 | 1982-10-25 | Asahi Glass Co Ltd | Cation exchange membrane for electrolysis |
AU535261B2 (en) * | 1979-11-27 | 1984-03-08 | Asahi Glass Company Limited | Ion exchange membrane cell |
US4394229A (en) * | 1980-06-02 | 1983-07-19 | Ppg Industries, Inc. | Cathode element for solid polymer electrolyte |
JPS5729586A (en) * | 1980-07-28 | 1982-02-17 | Kanegafuchi Chem Ind Co Ltd | Electrolysis of alkali metal chloride |
JPS6016518B2 (ja) * | 1980-07-31 | 1985-04-25 | 旭硝子株式会社 | イオン交換膜電解槽 |
US4417959A (en) * | 1980-10-29 | 1983-11-29 | Olin Corporation | Electrolytic cell having a composite electrode-membrane structure |
DE3132947A1 (de) * | 1981-08-20 | 1983-03-03 | Uhde Gmbh, 4600 Dortmund | Elektrolysezelle |
US4832805A (en) * | 1981-12-30 | 1989-05-23 | General Electric Company | Multi-layer structure for electrode membrane-assembly and electrolysis process using same |
US4657650A (en) * | 1982-12-27 | 1987-04-14 | Eltech Systems Corporation | Electrochemical cell having reticulated electrical connector |
AU2413084A (en) * | 1982-12-27 | 1984-07-17 | Eltech Systems Corporation | Reticulated electrical connector |
US4673479A (en) * | 1983-03-07 | 1987-06-16 | The Dow Chemical Company | Fabricated electrochemical cell |
US4568434A (en) * | 1983-03-07 | 1986-02-04 | The Dow Chemical Company | Unitary central cell element for filter press electrolysis cell structure employing a zero gap configuration and process utilizing said cell |
CH656402A5 (de) * | 1983-05-06 | 1986-06-30 | Bbc Brown Boveri & Cie | Kathodischer stromkollektor. |
US4687558A (en) * | 1984-07-02 | 1987-08-18 | Olin Corporation | High current density cell |
US4588483A (en) * | 1984-07-02 | 1986-05-13 | Olin Corporation | High current density cell |
US4604171A (en) * | 1984-12-17 | 1986-08-05 | The Dow Chemical Company | Unitary central cell element for filter press, solid polymer electrolyte electrolysis cell structure and process using said structure |
US4654136A (en) * | 1984-12-17 | 1987-03-31 | The Dow Chemical Company | Monopolar or bipolar electrochemical terminal unit having a novel electric current transmission element |
US4789451A (en) * | 1985-04-18 | 1988-12-06 | Texaco Inc. | Means for reducing oxalic acid to a product |
US4666579A (en) * | 1985-12-16 | 1987-05-19 | The Dow Chemical Company | Structural frame for a solid polymer electrolyte electrochemical cell |
US4668371A (en) * | 1985-12-16 | 1987-05-26 | The Dow Chemical Company | Structural frame for an electrochemical cell |
US5041197A (en) * | 1987-05-05 | 1991-08-20 | Physical Sciences, Inc. | H2 /C12 fuel cells for power and HCl production - chemical cogeneration |
US5013414A (en) * | 1989-04-19 | 1991-05-07 | The Dow Chemical Company | Electrode structure for an electrolytic cell and electrolytic process used therein |
DE4120359C2 (de) * | 1990-06-21 | 1993-11-18 | Deutsche Aerospace | Verfahren zur Herstellung einer elektrochemischen Zelle und deren Verwendung |
CN1019590B (zh) * | 1990-09-03 | 1992-12-23 | 张学明 | 高效水电解制氢氧装置 |
BE1004689A4 (fr) * | 1991-03-20 | 1993-01-12 | Solvay | Electrode bipolaire pour electrolyseur du type serie et electrolyseur du type serie. |
IT1248564B (it) * | 1991-06-27 | 1995-01-19 | Permelec Spa Nora | Processo di decomposizione elettrochimica di sali neutri senza co-produzione di alogeni o di acido e cella di elettrolisi adatta per la sua realizzazione. |
US5599430A (en) * | 1992-01-14 | 1997-02-04 | The Dow Chemical Company | Mattress for electrochemical cells |
IT1270878B (it) * | 1993-04-30 | 1997-05-13 | Permelec Spa Nora | Migliorata cella elettrochimica utilizzante membrane a scambio ionico e piatti bipolari metallici |
DE4325705C2 (de) * | 1993-07-30 | 2002-06-27 | Ghw Ges Fuer Hochleistungselek | Elektrolysezellenanordnung in Filterpressenbauart |
DE19624024A1 (de) * | 1996-06-17 | 1997-12-18 | Verein Fuer Kernverfahrenstech | Verfahren zur Herstellung von Halogenen, Oxoverbindungen der Halogene sowie zur Herstellung von Peroxyverbindungen durch Elektrolyse |
DE19624023B9 (de) * | 1996-06-17 | 2009-05-20 | Verein für Kernverfahrenstechnik und Analytik Rossendorf e.V. | Verfahren zur Sanierung saurer, eisenhaltiger Tagebaurestlochgewässer |
EP1242654B1 (en) * | 1999-12-28 | 2006-06-07 | Akzo Nobel N.V. | Method and construction for ventilation of hydrogen gas |
DE10219908A1 (de) * | 2002-05-03 | 2003-11-27 | Epcos Ag | Elektrode und ein Verfahren zu deren Herstellung |
US7303661B2 (en) * | 2003-03-31 | 2007-12-04 | Chlorine Engineers Corp., Ltd. | Electrode for electrolysis and ion exchange membrane electrolytic cell |
US20050011753A1 (en) * | 2003-06-23 | 2005-01-20 | Jackson John R. | Low energy chlorate electrolytic cell and process |
CA2538738A1 (en) * | 2003-09-22 | 2005-03-31 | Hydrogenics Corporation | Electrolyzer cell arrangement |
JP4834329B2 (ja) * | 2005-05-17 | 2011-12-14 | クロリンエンジニアズ株式会社 | イオン交換膜型電解槽 |
US20100314261A1 (en) * | 2005-12-14 | 2010-12-16 | Perry Michael L | Oxygen-Consuming Zero-Gap Electrolysis Cells With Porous/Solid Plates |
ITMI20071375A1 (it) * | 2007-07-10 | 2009-01-11 | Uhdenora Spa | Collettore di corrente elastico per celle elettrochimiche |
IT1391774B1 (it) * | 2008-11-17 | 2012-01-27 | Uhdenora Spa | Cella elementare e relativo elettrolizzatore modulare per processi elettrolitici |
DE102010026310A1 (de) | 2010-07-06 | 2012-01-12 | Uhde Gmbh | Elektrode für Elektrolysezellen |
WO2012048032A2 (en) | 2010-10-07 | 2012-04-12 | Ceramatec, Inc. | Chemical systems and methods for operating an electrochemical cell with an acidic anolyte |
US9445602B2 (en) * | 2010-11-16 | 2016-09-20 | Strategic Resource Optimization, Inc. | Electrolytic system and method for generating biocides having an electron deficient carrier fluid and chlorine dioxide |
US8394253B2 (en) * | 2010-11-16 | 2013-03-12 | Strategic Resource Optimization, Inc. | Electrolytic system and method for generating biocides having an electron deficient carrier fluid and chlorine dioxide |
JP5693215B2 (ja) | 2010-12-28 | 2015-04-01 | 東ソー株式会社 | イオン交換膜法電解槽 |
DE102011008163A1 (de) * | 2011-01-10 | 2012-07-12 | Bayer Material Science Ag | Beschichtung für metallische Zellelement-Werkstoffe einer Elektrolysezelle |
US20120175267A1 (en) * | 2011-01-10 | 2012-07-12 | Sai Bhavaraju | Control of ph kinetics in an electrolytic cell having an acid-intolerant alkali-conductive membrane |
FR2973044B1 (fr) * | 2011-03-22 | 2015-01-16 | Cleanea | Cellule electrochimique symetrique |
PT2734658T (pt) | 2011-07-20 | 2019-11-14 | New Nel Hydrogen As | Conceito de quadro de eletrolisador, método e utilização |
JP6183620B2 (ja) * | 2012-10-31 | 2017-08-23 | 株式会社大阪ソーダ | ゼロギャップ式食塩電解槽用陽極、食塩電解槽、及びこれを用いる食塩電解方法 |
US9222178B2 (en) | 2013-01-22 | 2015-12-29 | GTA, Inc. | Electrolyzer |
US8808512B2 (en) | 2013-01-22 | 2014-08-19 | GTA, Inc. | Electrolyzer apparatus and method of making it |
US20150329385A1 (en) * | 2014-01-28 | 2015-11-19 | Industrie De Nora S.P.A. | An electrolyzed water generating method and a generator |
US10106901B2 (en) | 2015-02-03 | 2018-10-23 | Edward E. Johnson | Scalable energy demand system for the production of hydrogen |
JP6746721B2 (ja) | 2017-01-26 | 2020-08-26 | 旭化成株式会社 | 複極式電解槽、アルカリ水電解用複極式電解槽、及び水素製造方法 |
WO2018139609A1 (ja) | 2017-01-26 | 2018-08-02 | 旭化成株式会社 | 複極式電解セル、複極式電解槽、水素製造方法 |
WO2018139613A1 (ja) | 2017-01-26 | 2018-08-02 | 旭化成株式会社 | 複極式エレメント、複極式電解槽、水素製造方法 |
EP3575439B1 (en) | 2017-01-26 | 2023-10-25 | Asahi Kasei Kabushiki Kaisha | Electrolytic bath, electrolysis device, electrolysis method, and method for producing hydrogen |
CA3133808C (en) * | 2019-03-18 | 2024-01-23 | Asahi Kasei Kabushiki Kaisha | Elastic mattress and electrolyzer |
CN111039362A (zh) * | 2019-12-18 | 2020-04-21 | 广州康迈斯科技有限公司 | 一种螺线形电解水发生器 |
GB202100555D0 (en) | 2021-01-15 | 2021-03-03 | Afc Energy Plc | Bipolar plate and resilent conduction member |
US11998875B2 (en) | 2021-12-22 | 2024-06-04 | The Research Foundation for The State University of New York York | System and method for electrochemical ocean alkalinity enhancement |
EP4234761A1 (en) * | 2022-02-25 | 2023-08-30 | thyssenkrupp nucera AG & Co. KGaA | Electrolysis cell |
US12012664B1 (en) | 2023-03-16 | 2024-06-18 | Lyten, Inc. | Membrane-based alkali metal extraction system |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE617375A (es) * | 1961-05-08 | 1900-01-01 | ||
FR89422E (es) * | 1962-08-24 | 1967-06-23 | ||
US3282875A (en) * | 1964-07-22 | 1966-11-01 | Du Pont | Fluorocarbon vinyl ether polymers |
US3379634A (en) * | 1965-05-24 | 1968-04-23 | Air Force Usa | Zero gravity electrolysis apparatus |
GB1268182A (en) * | 1968-04-03 | 1972-03-22 | Ici Ltd | Electrolytic cell |
GB1184321A (en) * | 1968-05-15 | 1970-03-11 | Du Pont | Electrochemical Cells |
US4100050A (en) * | 1973-11-29 | 1978-07-11 | Hooker Chemicals & Plastics Corp. | Coating metal anodes to decrease consumption rates |
US4111779A (en) * | 1974-10-09 | 1978-09-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Bipolar system electrolytic cell |
DE2551438C2 (de) * | 1974-11-26 | 1986-04-03 | Takeda Chemical Industries, Ltd., Osaka | Verfahren zur Herstellung von β-1,3-Glucanderivaten |
US3993653A (en) * | 1974-12-31 | 1976-11-23 | Commissariat A L'energie Atomique | Cell for electrolysis of steam at high temperature |
US4057479A (en) * | 1976-02-26 | 1977-11-08 | Billings Energy Research Corporation | Solid polymer electrolyte cell construction |
US4056452A (en) * | 1976-02-26 | 1977-11-01 | Billings Energy Research Corporation | Electrolysis apparatus |
US4210501A (en) * | 1977-12-09 | 1980-07-01 | General Electric Company | Generation of halogens by electrolysis of hydrogen halides in a cell having catalytic electrodes bonded to a solid polymer electrolyte |
US4191618A (en) * | 1977-12-23 | 1980-03-04 | General Electric Company | Production of halogens in an electrolysis cell with catalytic electrodes bonded to an ion transporting membrane and an oxygen depolarized cathode |
CA1140891A (en) * | 1978-01-03 | 1983-02-08 | General Electric Company | Electrolytic cell with membrane and electrodes bonded to it having outward projections |
IT1118243B (it) * | 1978-07-27 | 1986-02-24 | Elche Ltd | Cella di elettrolisi monopolare |
US4247376A (en) * | 1979-01-02 | 1981-01-27 | General Electric Company | Current collecting/flow distributing, separator plate for chloride electrolysis cells utilizing ion transporting barrier membranes |
US4253922A (en) * | 1979-02-23 | 1981-03-03 | Ppg Industries, Inc. | Cathode electrocatalysts for solid polymer electrolyte chlor-alkali cells |
US4340452A (en) * | 1979-08-03 | 1982-07-20 | Oronzio deNora Elettrochimici S.p.A. | Novel electrolysis cell |
-
1980
- 1980-05-19 US US06/151,346 patent/US4340452A/en not_active Expired - Lifetime
- 1980-06-20 IL IL60369A patent/IL60369A/xx unknown
- 1980-06-26 FI FI802041A patent/FI68429C/fi not_active IP Right Cessation
- 1980-06-27 PH PH24207A patent/PH17445A/en unknown
- 1980-07-02 GB GB8021705A patent/GB2056493B/en not_active Expired
- 1980-07-07 HU HU801697A patent/HU184798B/hu unknown
- 1980-07-10 CS CS804925A patent/CS237315B2/cs unknown
- 1980-07-10 SK SK3635-85A patent/SK363585A3/sk unknown
- 1980-07-16 NO NO802140A patent/NO157544C/no unknown
- 1980-07-21 AU AU60652/80A patent/AU529947B2/en not_active Expired
- 1980-07-23 GR GR62533A patent/GR69342B/el unknown
- 1980-07-23 NL NLAANVRAGE8004238,A patent/NL182232C/xx not_active IP Right Cessation
- 1980-07-25 MX MX205701A patent/MX159843A/es unknown
- 1980-07-25 MX MX183311A patent/MX155163A/es unknown
- 1980-07-30 DD DD80233401A patent/DD201810A5/de not_active IP Right Cessation
- 1980-07-30 DE DE19803028970 patent/DE3028970A1/de active Granted
- 1980-07-30 DE DE3051012A patent/DE3051012C2/de not_active Expired
- 1980-07-30 PL PL1980225975A patent/PL128849B1/pl unknown
- 1980-07-30 DD DD80222967A patent/DD152585A5/de not_active IP Right Cessation
- 1980-07-30 AR AR281994A patent/AR226315A1/es active
- 1980-07-31 YU YU1933/80A patent/YU42534B/xx unknown
- 1980-07-31 SE SE8005483A patent/SE455508B/sv not_active IP Right Cessation
- 1980-07-31 FR FR808016963A patent/FR2463199B1/fr not_active Expired
- 1980-08-01 BR BR8004848A patent/BR8004848A/pt not_active IP Right Cessation
- 1980-08-01 CH CH587880A patent/CH646462A5/fr not_active IP Right Cessation
- 1980-08-01 CA CA000357494A patent/CA1219239A/en not_active Expired
- 1980-08-01 ES ES493948A patent/ES493948A0/es active Granted
- 1980-08-02 RO RO80101878A patent/RO81917A/ro unknown
- 1980-08-02 EG EG469/80A patent/EG14586A/xx active
- 1980-09-09 IN IN266/BOM/80A patent/IN154318B/en unknown
-
1981
- 1981-03-02 ES ES499974A patent/ES8205880A1/es not_active Expired
-
1983
- 1983-10-06 US US06/539,522 patent/US4530743A/en not_active Expired - Lifetime
-
1984
- 1984-10-04 FR FR8415250A patent/FR2553792B1/fr not_active Expired - Lifetime
-
1985
- 1985-05-03 NL NL8501269A patent/NL8501269A/nl active Search and Examination
- 1985-08-23 SE SE8501986A patent/SE8501986D0/xx not_active Application Discontinuation
Also Published As
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