EP0155895A1 - Verfahren zur Herstellung flacher Bildwiedergabeschirme und nach diesem Verfahren hergestellte Schirme - Google Patents

Verfahren zur Herstellung flacher Bildwiedergabeschirme und nach diesem Verfahren hergestellte Schirme Download PDF

Info

Publication number
EP0155895A1
EP0155895A1 EP85430005A EP85430005A EP0155895A1 EP 0155895 A1 EP0155895 A1 EP 0155895A1 EP 85430005 A EP85430005 A EP 85430005A EP 85430005 A EP85430005 A EP 85430005A EP 0155895 A1 EP0155895 A1 EP 0155895A1
Authority
EP
European Patent Office
Prior art keywords
screen
screens
modulation
electrons
tip
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.)
Granted
Application number
EP85430005A
Other languages
English (en)
French (fr)
Other versions
EP0155895B1 (de
EP0155895B2 (de
Inventor
Jean-Paul Biberian
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Biberian Jean-Paul
SURFACES LAB ET SARL
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9301995&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0155895(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Biberian Jean-Paul, SURFACES LAB ET SARL filed Critical Biberian Jean-Paul
Priority to AT85430005T priority Critical patent/ATE44114T1/de
Publication of EP0155895A1 publication Critical patent/EP0155895A1/de
Publication of EP0155895B1 publication Critical patent/EP0155895B1/de
Application granted granted Critical
Publication of EP0155895B2 publication Critical patent/EP0155895B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group

Definitions

  • the conventional television tube with scanning of the electron beam cannot be reduced in thickness for physical reasons: distortion of the image if the beam arrives too grazing on the screen, and lack of precision to reach the masks on the screen in the case of color. Furthermore, the dimensions of the screen cannot be thoughtlessly increased for reasons of vacuum and therefore of resistance of the materials to pressure.
  • liquid crystals are attractive because they have a very low electrical consumption but they require, on the other hand, an external source of light to be visible. In addition, it is very difficult to make grayscale gradations, and to produce color images.
  • the invention also relates to flat display screens obtained by implementing the above method.
  • FIG. 6 is an explanatory diagram of an alternative embodiment of a flat display screen implementing the principle of FIG. 5.
  • FIG. 1 The basic principle of the invention shown diagrammatically in FIG. 1 essentially consists in using as field source microtips as the electron source.
  • a field emission tip such that 1, having a radius of curvature of a few hundred Angstrom, emits electrons e simply by applying an electric field between the tip 1 and a fluorescent screen 2 thanks to the potential E.
  • a simple solution for manufacturing a flat display screen according to the invention consists, as shown diagrammatically in Figure 2, to connect the one hand, the tips in lines, for exam- p the spikes 1 A1, 1 B1 , 1 C1 ... along line L A1 ; points 1 A2 ' 1 B2 , 1C2 ... along line L A2 ; points 1 A3 , 1 B3 , 1 C3 ... along line L A3 etc ...; on the other hand, the screens in columns 2 A , 2 B , 2 C ...
  • This arrangement makes it possible to produce, by matrixing and row-to-column addressing, successive light points to be emitted on the screen.
  • the tips can be produced by deposition or etching techniques using the conventional methods of microelectronics, that is to say masking and then wet etching in acid baths or dry etching by plasma or particle beam.
  • the different columns of the screen are made of transparent material, for example glass, covered with a metallic film and a fluorescent material.
  • each light point In order to eliminate the problem of manufacturing a large number of microtips having very close radii of curvature, and also to overcome the possible failure of one of these points, it is advantageous to constitute each light point by a set of several microtips.
  • the type of screen configuration according to the invention that has just been described is of the diode type, and constitutes the simplest solution from the conceptual point of view, but problems appear at the level of the control voltages. Indeed, for the electron extraction voltage E to be low enough to allow rapid switching, the tip-screen distance must be of the order of a few microns, which obviously creates technical manufacturing problems.
  • FIG. 3 A solution, both more advanced and simpler, of the invention facilitating the problems of rapid switching and making it possible to considerably reduce the technical problems which have just been mentioned above, is shown diagrammatically in FIG. 3.
  • This solution essentially consists in using a triode type assembly with a control grid 3 which makes it possible to modulate the electric intensity.
  • the invention makes it possible to solve the above problem simply and effectively by adopting the tetrode type arrangement shown diagrammatically in FIGS. 5 and 6.
  • This arrangement comprises, as in the previous cases, for each unit light point, a field emission tip 1, a fluorescent screen 2, a first extraction grid 3, a second extraction grid 4.

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Auxiliary Devices For Music (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Photoreceptors In Electrophotography (AREA)
EP85430005A 1984-03-09 1985-03-05 Verfahren zur Herstellung flacher Bildwiedergabeschirme und nach diesem Verfahren hergestellte Schirme Expired - Lifetime EP0155895B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85430005T ATE44114T1 (de) 1984-03-09 1985-03-05 Verfahren zur herstellung flacher bildwiedergabeschirme und nach diesem verfahren hergestellte schirme.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8403877 1984-03-09
FR8403877A FR2561019B1 (fr) 1984-03-09 1984-03-09 Procede de realisation d'ecrans de visualisation plats et ecrans plats obtenus par la mise en oeuvre dudit procede

Publications (3)

Publication Number Publication Date
EP0155895A1 true EP0155895A1 (de) 1985-09-25
EP0155895B1 EP0155895B1 (de) 1989-06-14
EP0155895B2 EP0155895B2 (de) 1993-09-22

Family

ID=9301995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85430005A Expired - Lifetime EP0155895B2 (de) 1984-03-09 1985-03-05 Verfahren zur Herstellung flacher Bildwiedergabeschirme und nach diesem Verfahren hergestellte Schirme

Country Status (6)

Country Link
US (1) US4763187B1 (de)
EP (1) EP0155895B2 (de)
JP (1) JP2711834B2 (de)
AT (1) ATE44114T1 (de)
DE (1) DE3571099D1 (de)
FR (1) FR2561019B1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001098A1 (en) * 1986-07-30 1988-02-11 Commtech International Management Corporation Matrix-addressed flat panel display
FR2604823A1 (fr) * 1986-10-02 1988-04-08 Etude Surfaces Lab Dispositif emetteur d'electrons et son application notamment a la realisation d'ecrans plats de television
EP0345148A1 (de) * 1988-06-01 1989-12-06 Commissariat A L'energie Atomique Adressierungsverfahren für einen Mikrospitzen-Fluoreszenz-Matrixbildschirm
EP0349425A1 (de) * 1988-06-29 1990-01-03 Commissariat A L'energie Atomique Dreifarben-Leuchtschirm mit Mikrospitzen-Kathoden
EP0349426A1 (de) * 1988-06-29 1990-01-03 Commissariat A L'energie Atomique Mikrospitzen-Fluoreszenzbildschirm mit einer geringen Anzahl von Adressierungsschaltkreisen und Adressierungsverfahren von diesem Bildschirm
AU595043B2 (en) * 1986-07-02 1990-03-22 Matsushita Electronics Corporation Flat screen device
EP0172089B1 (de) * 1984-07-27 1990-05-16 Commissariat à l'Energie Atomique Bildanzeigevorrichtung mittels feldemissions angeregter Kathodolumineszenz
US5225820A (en) * 1988-06-29 1993-07-06 Commissariat A L'energie Atomique Microtip trichromatic fluorescent screen
US5231387A (en) * 1988-06-29 1993-07-27 Commissariat A L'energie Atomique Apparatus and method for addressing microtip fluorescent screen
GB2261766B (en) * 1991-02-28 1995-03-08 Motorola Inc A field emission display device employing an integral planar field emission control device

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923421A (en) * 1988-07-06 1990-05-08 Innovative Display Development Partners Method for providing polyimide spacers in a field emission panel display
CN1026943C (zh) * 1990-03-06 1994-12-07 杭州大学 平板彩色显示器
FR2669124B1 (fr) * 1990-11-08 1993-01-22 Commissariat Energie Atomique Dispositif electrooptique bistable, ecran comportant un tel dispositif et procede de mise en óoeuvre de cet ecran.
GB2254486B (en) * 1991-03-06 1995-01-18 Sony Corp Flat image-display apparatus
US5818500A (en) * 1991-05-06 1998-10-06 Eastman Kodak Company High resolution field emission image source and image recording apparatus
US5536193A (en) * 1991-11-07 1996-07-16 Microelectronics And Computer Technology Corporation Method of making wide band gap field emitter
US5402143A (en) * 1991-12-23 1995-03-28 Panocorp Display Systems Color fluorescent liquid crystal display
US5237180A (en) * 1991-12-31 1993-08-17 Eastman Kodak Company High resolution image source
US5696028A (en) * 1992-02-14 1997-12-09 Micron Technology, Inc. Method to form an insulative barrier useful in field emission displays for reducing surface leakage
US5548185A (en) * 1992-03-16 1996-08-20 Microelectronics And Computer Technology Corporation Triode structure flat panel display employing flat field emission cathode
US5543684A (en) 1992-03-16 1996-08-06 Microelectronics And Computer Technology Corporation Flat panel display based on diamond thin films
US5679043A (en) * 1992-03-16 1997-10-21 Microelectronics And Computer Technology Corporation Method of making a field emitter
US5600200A (en) * 1992-03-16 1997-02-04 Microelectronics And Computer Technology Corporation Wire-mesh cathode
US5763997A (en) * 1992-03-16 1998-06-09 Si Diamond Technology, Inc. Field emission display device
US5675216A (en) * 1992-03-16 1997-10-07 Microelectronics And Computer Technololgy Corp. Amorphic diamond film flat field emission cathode
US5449970A (en) * 1992-03-16 1995-09-12 Microelectronics And Computer Technology Corporation Diode structure flat panel display
US6127773A (en) * 1992-03-16 2000-10-03 Si Diamond Technology, Inc. Amorphic diamond film flat field emission cathode
US5504387A (en) * 1992-12-26 1996-04-02 Sanyo Electric Co., Ltd. Flat display where a first film electrode, a dielectric film, and a second film electrode are successively formed on a base plate and electrons are directly emitted from the first film electrode
CA2112733C (en) * 1993-01-07 1999-03-30 Naoto Nakamura Electron beam-generating apparatus, image-forming apparatus, and driving methods thereof
KR0156032B1 (ko) * 1993-05-28 1998-10-15 호소야 레이지 전자방출소자 및 그 전자방출소자를 이용한 화상표시장치, 화상표시 장치의 구동장치, 화상표시장치의 화상표시 구동회로
US5378182A (en) * 1993-07-22 1995-01-03 Industrial Technology Research Institute Self-aligned process for gated field emitters
US5462467A (en) * 1993-09-08 1995-10-31 Silicon Video Corporation Fabrication of filamentary field-emission device, including self-aligned gate
TW272322B (de) * 1993-09-30 1996-03-11 Futaba Denshi Kogyo Kk
US5404070A (en) * 1993-10-04 1995-04-04 Industrial Technology Research Institute Low capacitance field emission display by gate-cathode dielectric
WO1995012835A1 (en) * 1993-11-04 1995-05-11 Microelectronics And Computer Technology Corporation Methods for fabricating flat panel display systems and components
JP3267432B2 (ja) * 1993-12-20 2002-03-18 双葉電子工業株式会社 ディスプレイ装置
EP0660367B1 (de) * 1993-12-22 2000-03-29 Canon Kabushiki Kaisha Bilderzeugungsgerät
US5451830A (en) * 1994-01-24 1995-09-19 Industrial Technology Research Institute Single tip redundancy method with resistive base and resultant flat panel display
US5786663A (en) * 1994-12-01 1998-07-28 Commissariat A L'energie Atomique Electron collector having independently controllable conductive strips
US6559818B1 (en) * 1995-01-24 2003-05-06 Micron Technology, Inc. Method of testing addressable emissive cathodes
US5751262A (en) 1995-01-24 1998-05-12 Micron Display Technology, Inc. Method and apparatus for testing emissive cathodes
KR100239688B1 (ko) * 1995-11-20 2000-01-15 김영환 필드 에미션 디스플레이(fed)의 마이크로팁 제조방법
DE19546039A1 (de) * 1995-12-09 1997-06-12 Forsch Mineralische Und Metall Bildschirm, Verfahren zu seiner Herstellung sowie Verfahren und Vorrichtung zur Darstellung von Bildern auf einem Bildschirm
US5633561A (en) * 1996-03-28 1997-05-27 Motorola Conductor array for a flat panel display
US5710483A (en) * 1996-04-08 1998-01-20 Industrial Technology Research Institute Field emission device with micromesh collimator
US6022256A (en) 1996-11-06 2000-02-08 Micron Display Technology, Inc. Field emission display and method of making same
GB2321335A (en) * 1997-01-16 1998-07-22 Ibm Display device
US6391670B1 (en) 1999-04-29 2002-05-21 Micron Technology, Inc. Method of forming a self-aligned field extraction grid
KR100499120B1 (ko) * 2000-02-25 2005-07-04 삼성에스디아이 주식회사 카본 나노튜브를 이용한 3전극 전계 방출 표시소자
WO2007091993A2 (en) * 2005-01-31 2007-08-16 The Board Of Trustees Of The University Of Illinois Plasma extraction microcavity plasma devive and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622828A (en) * 1969-12-01 1971-11-23 Us Army Flat display tube with addressable cathode
FR2348561A1 (fr) 1976-04-13 1977-11-10 Battelle Memorial Institute Tube videocathodique d'affichage
DE3035988A1 (de) * 1980-09-24 1982-04-29 Siemens Ag Flache bildroehre
FR2503432A1 (fr) * 1981-04-03 1982-10-08 Futaba Denshi Kogyo Kk Dispositif d'affichage fluorescent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107858A (de) * 1974-01-30 1975-08-25
US4020381A (en) * 1974-12-09 1977-04-26 Texas Instruments Incorporated Cathode structure for a multibeam cathode ray tube
US3935500A (en) * 1974-12-09 1976-01-27 Texas Instruments Incorporated Flat CRT system
US3935499A (en) * 1975-01-03 1976-01-27 Texas Instruments Incorporated Monolythic staggered mesh deflection systems for use in flat matrix CRT's
US4170772A (en) * 1978-04-26 1979-10-09 The United States Of America As Represented By The Secretary Of The Army Flat panel display with full color capability
JPS57202051A (en) * 1981-06-05 1982-12-10 Futaba Corp Fluorescent display unit
JPS57202050A (en) * 1981-06-08 1982-12-10 Futaba Corp Fluorescent display unit
DE3243596C2 (de) * 1982-11-25 1985-09-26 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Verfahren und Vorrichtung zur Übertragung von Bildern auf einen Bildschirm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622828A (en) * 1969-12-01 1971-11-23 Us Army Flat display tube with addressable cathode
FR2348561A1 (fr) 1976-04-13 1977-11-10 Battelle Memorial Institute Tube videocathodique d'affichage
DE3035988A1 (de) * 1980-09-24 1982-04-29 Siemens Ag Flache bildroehre
FR2503432A1 (fr) * 1981-04-03 1982-10-08 Futaba Denshi Kogyo Kk Dispositif d'affichage fluorescent

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JEE JOURNAL OF ELECTRONIC ENGINEERING, vol. 17, no. 161, mai 1980, pages 57-60, Tokyo, JP; T. NAKAMURA: "Itron VFDs become word processing displays" *
PATENTS ABSTRACTS OF JAPAN, vol. 7, (E-162)(1197), 2 mars 1983, page 52 E 162; & JP - A - 57 202 051 (FUTABA DENSHI KOGYO K.K.) 10-12-1982 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172089B1 (de) * 1984-07-27 1990-05-16 Commissariat à l'Energie Atomique Bildanzeigevorrichtung mittels feldemissions angeregter Kathodolumineszenz
AU595043B2 (en) * 1986-07-02 1990-03-22 Matsushita Electronics Corporation Flat screen device
WO1988001098A1 (en) * 1986-07-30 1988-02-11 Commtech International Management Corporation Matrix-addressed flat panel display
FR2604823A1 (fr) * 1986-10-02 1988-04-08 Etude Surfaces Lab Dispositif emetteur d'electrons et son application notamment a la realisation d'ecrans plats de television
FR2632436A1 (fr) * 1988-06-01 1989-12-08 Commissariat Energie Atomique Procede d'adressage d'un ecran matriciel fluorescent a micropointes
EP0345148A1 (de) * 1988-06-01 1989-12-06 Commissariat A L'energie Atomique Adressierungsverfahren für einen Mikrospitzen-Fluoreszenz-Matrixbildschirm
US5138308A (en) * 1988-06-01 1992-08-11 Commissariat A L'energie Atomique Microtip fluorescent matrix screen addressing process
EP0349426A1 (de) * 1988-06-29 1990-01-03 Commissariat A L'energie Atomique Mikrospitzen-Fluoreszenzbildschirm mit einer geringen Anzahl von Adressierungsschaltkreisen und Adressierungsverfahren von diesem Bildschirm
FR2633765A1 (fr) * 1988-06-29 1990-01-05 Commissariat Energie Atomique Ecran fluorescent a micropointes ayant un nombre reduit de circuits d'adressage et procede d'adressage de cet ecran
FR2633763A1 (fr) * 1988-06-29 1990-01-05 Commissariat Energie Atomique Ecran fluorescent trichrome a micropointes
EP0349425A1 (de) * 1988-06-29 1990-01-03 Commissariat A L'energie Atomique Dreifarben-Leuchtschirm mit Mikrospitzen-Kathoden
US5225820A (en) * 1988-06-29 1993-07-06 Commissariat A L'energie Atomique Microtip trichromatic fluorescent screen
US5231387A (en) * 1988-06-29 1993-07-27 Commissariat A L'energie Atomique Apparatus and method for addressing microtip fluorescent screen
GB2261766B (en) * 1991-02-28 1995-03-08 Motorola Inc A field emission display device employing an integral planar field emission control device

Also Published As

Publication number Publication date
JP2711834B2 (ja) 1998-02-10
JPS6123479A (ja) 1986-01-31
FR2561019A1 (fr) 1985-09-13
FR2561019B1 (fr) 1987-07-17
EP0155895B1 (de) 1989-06-14
EP0155895B2 (de) 1993-09-22
ATE44114T1 (de) 1989-06-15
DE3571099D1 (en) 1989-07-20
US4763187B1 (en) 1997-11-04
US4763187A (en) 1988-08-09

Similar Documents

Publication Publication Date Title
EP0155895B1 (de) Verfahren zur Herstellung flacher Bildwiedergabeschirme und nach diesem Verfahren hergestellte Schirme
EP0704877A1 (de) Elektrischer Schutz von einer Anode eines flachen Bildschirms
FR2499801A1 (fr) Dispositif d'affichage d'image de type plat
FR2682211A1 (fr) Dispositif d'affichage fluorescent de type plat.
EP1814136B1 (de) Ionenpumpen eines Flachbildschirms mit Mikropunkten
FR2714209A1 (fr) Dispositif d'affichage.
EP0817232B1 (de) Verfahren zur Regenerierung von Mikrospitzen einer flachen Anzeigetafel
EP1210721B1 (de) Flache feldemissionsanzeigevorrichtung mit modulationselektrode
EP0734043B1 (de) Doppel-Gate-Flaches Bildschirm
FR2748347A1 (fr) Anode d'ecran plat de visualisation a anneau de protection
EP0649162B1 (de) Flaches Kaltkathodeanzeigegerät mit geschalteter Anode
EP0747875B1 (de) Steuerverfahren für eine flache Anzeigetafel
EP0844642A1 (de) Flaches Bildschirm mit fokussierenden Gittern
FR2756418A1 (fr) Ecran plat de visualisation a deviation laterale
EP0877407A1 (de) Anode eines flachen Bildschirms
FR2765391A1 (fr) Dispositif d'affichage a cathodes a emission de champ
EP1147538B1 (de) Verfahren zur steuerung einer struktur mit einer elektronen-feldemissionsquelle
FR2769114A1 (fr) Simplification de l'adressage d'un ecran a micropointes
BE892068A (fr) Dispositif d'affichage d'image de type plat
FR2761522A1 (fr) Uniformisation de l'emission electronique potentielle d'une cathode d'ecran plat a micropointes
FR2809862A1 (fr) Ecran plat de visualisation a memoire d'adressage
FR2798507A1 (fr) Dispositif permettant de produire un champ electrique module au niveau d'une electrode et son application aux ecrans plats a emission de champ
FR2704967A1 (fr) Ecran plat à micropointes à anode doublement commutée.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19860318

17Q First examination report despatched

Effective date: 19871130

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 44114

Country of ref document: AT

Date of ref document: 19890615

Kind code of ref document: T

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: BIBERIAN, JEAN-PAUL

REF Corresponds to:

Ref document number: 3571099

Country of ref document: DE

Date of ref document: 19890720

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
BECH Be: change of holder

Free format text: 890614 *BIBERIAN JEAN-PAUL

BECN Be: change of holder's name

Effective date: 19890614

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: COMMISSARIAT A L'ENERGIE ATOMIQUE

Effective date: 19900311

NLR1 Nl: opposition has been filed with the epo

Opponent name: COMMISSARIAT A L KENERGIE ATOMIQUE

ITTA It: last paid annual fee
ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19930922

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19930929

NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85430005.0

BECA Be: change of holder's address

Free format text: 970909 LE COMMISSARIAT A L'ENERGIE ATOMIQUE *CEA:31-33 RUE DE LA FEDERATION,PARIS 15EME

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: JEAN-PAUL BIBERIAN TRANSFER- COMMISSARIAT A L'ENER

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980223

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980317

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980324

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980330

Year of fee payment: 14

Ref country code: LU

Payment date: 19980330

Year of fee payment: 14

NLS Nl: assignments of ep-patents

Owner name: COMMISSARIAT A L'ENERGIE ATOMIQUE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19980416

Year of fee payment: 14

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990305

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

BERE Be: lapsed

Owner name: LE COMMISSARIAT A L'ENERGIE ATOMIQUE CEA

Effective date: 19990331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991001

EUG Se: european patent has lapsed

Ref document number: 85430005.0

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19991001

EUG Se: european patent has lapsed

Ref document number: 85430005.0

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040227

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040305

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20050304

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20