EP0038222B1 - Deformable roof sealing material - Google Patents

Deformable roof sealing material Download PDF

Info

Publication number
EP0038222B1
EP0038222B1 EP81301672A EP81301672A EP0038222B1 EP 0038222 B1 EP0038222 B1 EP 0038222B1 EP 81301672 A EP81301672 A EP 81301672A EP 81301672 A EP81301672 A EP 81301672A EP 0038222 B1 EP0038222 B1 EP 0038222B1
Authority
EP
European Patent Office
Prior art keywords
sealing material
roof
roof sealing
foil
material according
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
EP81301672A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0038222A2 (en
EP0038222A3 (en
Inventor
Stig Ernst Jeppesen
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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=26065943&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0038222(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DK159880A external-priority patent/DK145509C/da
Application filed by VKR Holding AS filed Critical VKR Holding AS
Priority to AT81301672T priority Critical patent/ATE41193T1/de
Publication of EP0038222A2 publication Critical patent/EP0038222A2/en
Publication of EP0038222A3 publication Critical patent/EP0038222A3/en
Application granted granted Critical
Publication of EP0038222B1 publication Critical patent/EP0038222B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation

Definitions

  • sandwich material for instance, in British patent specification 1 095 393, said sandwich material consisting of a foil of aluminium or thermoplastics and a thicker, pressure adhesive coating of bitumen and a flexible polymeric material compatible therewith as well as a detachable cover layer or protecting paper.
  • This material does not stand being stretched and bent to a double curved shaped as required for instance for covering the passage from a plane surface to a curved or corrugated roofing.
  • the known material in question is used primarily as a weatherproof adhesive tape for sealing joints and cracks.
  • Corrugated materials are known for main roof coverings, for example from FR-A-2214307, US-A-1616968, US-A-3212956 and GB-A-708568. These materials cannot be shaped to a double curve, and in no sense can they substitute for conventional lead-work. The last mentioned of them have a special corrugation form, whose maximum width is greater than the width of the mouth. This is provided to enable snap-fit interlocking of adjacent sheets.
  • FR-A-981312 discloses a flat material usable to form a seal (etancheite) but there is no indication that this material could be formed to a double curve.
  • the present invention has for its object mainly to provide a material having improved properties as regards workability not only in comparison with the above-mentioned sandwich material, but also as compared to conventional sheet lead which, when disposed on a corrugated roof plate, must be secured by hammering at the wave crests, which makes it difficult to control the final sheet thickness and involves a risk of damaging the material and causing cracks or breakage.
  • a further object of the invention is to achieve a sealing which in the same manner as in case of conventional sheet lead does not require a permanent adhesion to the support.
  • the invention relates to a roof sealing material, deformable so as to be able to follow a double curve, and so as to retain its deformed shape until further deformed with further force, whereby the material is suitable for sealing joints to roof portions of other material, the roof sealing material consisting at least partly of sheet metal or a metal foil.
  • this roof sealing material is characterised in that in order to improve the deformability it is corrugated in continuous S-shaped waves with troughs, the greatest diameter a of which is a little greater than the width b of the corresponding slit aperture.
  • This special corrugation results in the thin metal sheet being able to stand an extensive, local or variable stretching to double curved shape without local breakage or cracks, as the sides of the troughs or waves may curve more or less and thereby absorb a varying amount of material without any noticeable changes in the appearance of the sheet.
  • the deformation shape After deformation in this way, for example into a double curved shaped, the deformation shape will be maintained until such time as further deformation takes place by the application of external forces.
  • transverse stampings With a mutual separation of the same order of magnitude as the wave length.
  • Such transverse stampings render the waves less rigid in the longitudinal direction and furthermore break the striped pattern of the waves as they modify it into a honeycomb pattern which to a substantial extent blurs local deformations.
  • the sheet material according to the invention can in general consist of sheet metal, e.g. lead, whereby a substantially thinner sheet may be used than for conventional sheet lead where the thickness must be sufficient to allow the necessary deformation by stretching of the material. Mounting on a corrugated roofing surface can then be carried out solely by manual processing of the material without hammering and the resulting local variations in thickness with may cause cracks or breakages.
  • the roof sealing material according to the invention may consist of a sandwich of metal foil, preferably aluminium foil, and at least one tension reducing and/or stabilizing protective layer secured thereto for protecting the metal foil against mechanical, climatic and/or chemical actions.
  • the protective layer may have a composition of approximately the same character as the material disclosed in the abovementioned British specification and comprise a non-curable adhesive paste applied to one side of the metal foil and a cover foil on this adhesive layer.
  • the tension reducing and stabilizing effect is achieved as a result of the adhesive layer and by choosing specially a suitable cover foil
  • the roof sealing material of this embodiment may also in other respects be equivalent to lead as covering material.
  • the cover foil ought to be weatherproof and also be resistant to atmospheric pollutions and to sunlight as well as to high and low temperatures, and in addition, the cover foil should also have a suitable tearing strength.
  • PVF foil As an example of such foil material, mention can be made of PVF foil.
  • the reducing and stabilizing effect and the resistance to mechanical, climatic and/or chemical influences are achieved by means of a protective layer comprising at least one layer of an elastomeric material, preferably natural or synthetic rubber, secured to one side at least of the metal foil.
  • the protective layer comprises preferably an elastomeric vulcanizable material on both sides of the metal foil, said layers being vulcanized to each other through perforations in the foil to insure their connection with the foil
  • a flashing material For use as a flashing material it is often suitable to give the material the shape of a strip and in order to weigh down such a flashing strip in the same manner as in the use of lead, it may be advantageous to insert a strip or wire-shaped plumb, made for instance of lead, along one longitudinal side of the strip by bending the sandwich.
  • FIG. 1 and 2 are large-scale views of a section of two embodiments of the roof sealing material according to the invention, while Figs. 3 and 4 illustrate the use of conventional sheet lead and of the roof sealing material according to the invention, respectively.
  • the roof sealing material is a sandwich having a total thickness of about 0.35 to 1.5 mm and consisting of an aluminium foil 1 about, for instance, 0.1 mm thick and a protective layer comprising a cover foil 2 having the above-stated properties as well as an intermediate adhesive layer 3 of a non-curable bituminous type.
  • This sandwich is manufactured as a flat sheet and then corrugated, for instance between a pair of toothed rollers, to the shape shown, in the form of consecutive S-shaped waves or valleys, the greatest diameter a of which is a little greater than the width b of the corresponding slit aperture.
  • the corrugated pattern is not restricted solely to the shape shown in the drawings, as, for instance, a more sharp- edged cross-sectional pattern may be chosen instead of the gently curved pattern.
  • the waves are provided at the crest and at the external side of the trough with transverse stampings 4, the separation of which is appoximately the same size as the wave length, although this separation may be somewhat larger or smaller.
  • the stampings 4 on one side of the sheet are advantageously disposed substantially halfway between the stampings 4 on the other side of the sheet.
  • the sandwich comprises, as in the embodiment of Fig. 1, an aluminium foil 1' having a thickness of about 0.1 mm.
  • a protective layer comprising layers 5 and 6 of elastomeric material, preferably natural or synthetic gummi, on both sides of the foil 1'.
  • the elastomeric material may be, e.g., butyl rubber or the synthetic rubber available from Dupont under the registered trademark "Hypalon".
  • the protective layers 5 and 6 can be secured to the aluminium foil 1' by means of a suitable adhesive.
  • a suitable adhesive such as the above-mentioned materials
  • the risk of stratification of the sandwich as a result of prolonged use may, however, be avoided and the lifetime extended by providing the aluminium foil 1' with perforations as indicated at 7 and vulcanizing the protective layers 5 and 6 together through these perforations.
  • the roof sealing material can be produced in the shape of a transversely corrugated strip.
  • a strip or thread-shaped plumb made, e.g., of lead may be inserted along one longitudinal side, for instance by bending the strip along the dotted lines in Fig. 2.
  • Figs. 3 and 4 illustrate, respectively, the use of conventional sheet lead 9 and a roof sealing material 10 according to the invention, for tightening work on a corrugated roof surface 11.
  • the conventional sheet lead 9 is made to follow the shape of the roof surface 11 by hammering as shown by an arrow 12 against the crests of the waves while pressing down in the troughs, which results in substantial local thickness variations which cannot be predetermined and may cause cracks and breakages.
  • the roof sealing material 10 according to the invention can be made to follow the shape of the roof surface 11 by purely manual processing without hammering, so that the thickness is in all essentials the same at the crest of the waves and in the intermediate areas.
  • the roof sealing material according to the invention may be made entirely of sheet metal such as lead.
  • the corrugation may be carried out in the same manner as for the sandwich designs described hereinbefore and by using a smaller sheet thickness, e.g. 0.5 mm, than in case of conventional sheet lead, the same good deformability properties are obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Catalysts (AREA)
EP81301672A 1980-04-15 1981-04-15 Deformable roof sealing material Expired EP0038222B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81301672T ATE41193T1 (de) 1980-04-15 1981-04-15 Verformbares dachabdichtungsmaterial.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DK1598/80 1980-04-15
DK159880A DK145509C (da) 1980-04-15 1980-04-15 Deformerbart plademateriale,navnlig til brug ved tagtaetningsarbejder
DK3650/80 1980-08-26
DK365080A DK148064C (da) 1980-04-15 1980-08-26 Deformerbart plademateriale, navnlig til brug ved tagtaetningsarbejder

Publications (3)

Publication Number Publication Date
EP0038222A2 EP0038222A2 (en) 1981-10-21
EP0038222A3 EP0038222A3 (en) 1981-12-23
EP0038222B1 true EP0038222B1 (en) 1989-03-08

Family

ID=26065943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81301672A Expired EP0038222B1 (en) 1980-04-15 1981-04-15 Deformable roof sealing material

Country Status (5)

Country Link
EP (1) EP0038222B1 (no)
DE (1) DE3176996D1 (no)
DK (1) DK148064C (no)
ES (1) ES257713Y (no)
NO (1) NO157670C (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032058A1 (de) * 1989-10-12 1991-05-02 Rasmussen Kann Ind As Platten- oder bahnfoermiges dachabdichtungsmaterial
DE19747217C1 (de) * 1997-10-25 1999-04-15 Mage Gmbh First- oder Gratbelüftungselement

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8701605U1 (de) * 1987-02-03 1987-05-07 Karl Braun Gmbh, 7315 Weilheim Bleischürze für Eindeckrahmen von Dachfenstern
GB2227504A (en) * 1989-01-21 1990-08-01 Steelpress Metal flashing
FI89961C (fi) * 1992-04-13 1993-12-10 Rannila Steel Oy Foerbindningsskiva avsedd foer en foerbindningsplatta
DE4333247A1 (de) * 1993-09-30 1995-04-06 Braas Gmbh Plastisch verformbare Abdeckung
DK44194A (da) * 1994-04-15 1995-10-16 Rasmussen Kann Ind As Deformerbart plademateriale, navnlig til taginddækningsformål, og fremgangsmåde til fremstilling af et sådant materiale
DK56394A (da) * 1994-05-18 1995-11-19 Rasmussen Kann Ind As Plastisk deformerbart inddækningsmateriale, navnlig til taginddækningsformål, og fremgangsmåde til fremstilling af et sådant materiale
DE19523834C2 (de) * 1995-06-30 1997-09-11 Braas Gmbh Plastisch von Hand verformbares Abdeckmaterial und Verfahren zu seiner Herstellung
EP0792977B1 (fr) * 1996-03-01 2003-05-07 Umicore France Couvre-joint pour toiture
JPH1155997A (ja) * 1997-07-29 1999-02-26 Nec Ic Microcomput Syst Ltd 信号生成方式
DK172943B1 (da) * 1997-09-05 1999-10-11 Velux Ind As Deformerbart taginddækningsmateriale og en fremgangsmåde til fremstilling af en inddækningsskinne med et skørt af taginddæk
NL1009983C2 (nl) * 1998-09-01 2000-03-02 Besouw Kunststoffen B V Van Plastisch vervormbaar afdichtingsmateriaal en werkwijze voor het vervaardigen daarvan.
DE19914071A1 (de) * 1999-03-27 2000-10-19 Oskar Fleck Plastisch verformbares Abdeckmaterial
EP1041215A3 (de) 1999-03-27 2000-12-27 Oskar Fleck Plastisch verformbares Abdeckmaterial
DE19921339B4 (de) * 1999-05-08 2009-05-20 Bosig Gmbh Selbstklebender Anschlussstreifen
PL208664B1 (pl) * 2000-08-21 2011-05-31 Vkr Holding As Element obróbki blacharskiej oraz zestaw arkuszowej obróbki blacharskiej
EP1213403A3 (de) * 2000-12-06 2003-01-22 MBE Moderne Befestigungselemente GmbH Biegfähiger plissierter Abdeckstreifen und Verfahren zu seiner Herstellung
AU2003218953A1 (en) 2002-03-07 2003-09-16 Vkr Holding A/S Sheet flashing member and flashing kit comprising such sheet flashing members
GB2401562B (en) 2003-06-19 2005-03-30 David Taylor Improvement to lead sheet materials
US7168211B2 (en) * 2003-09-02 2007-01-30 Solatube International, Inc. Tubular skylight with dome flashing and protective waffle pattern corrugation
US7040061B2 (en) * 2003-09-02 2006-05-09 Solatube International, Inc. Tubular skylight with dome flashing and protective corrugation
EP2334494A1 (en) * 2008-09-05 2011-06-22 Maurizio Bertozzi Two layers extensible band for external protection of building structures
ITRN20080048A1 (it) * 2008-09-05 2008-12-05 Maurizio Bertozzi Nastro allungabile a due strati per la protezione sterna di strutture edili.
BE1018496A3 (nl) * 2008-09-25 2011-02-01 Gorissen Yvo Waterafvoer.
EP2697448A1 (fr) 2011-04-11 2014-02-19 Umicore Building Products France Bande de finition multicouches
EP2937487B1 (en) * 2012-12-27 2018-07-18 VKR Holding A/S A skirt material for use in a flashing for a roof penetrating structure and a method for disposal of a skirt material
DE102015011689A1 (de) * 2015-09-14 2017-03-16 Clemens Neumeister Gekantetes oder zur Kantung vorgesehenes Blech
CN107119869A (zh) * 2017-01-04 2017-09-01 唐相平 一种装饰板材

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1616968A (en) * 1926-01-09 1927-02-08 Newton L Hall Corrugated roofing or siding sheet
US2164138A (en) * 1938-03-05 1939-06-27 London Bernard Building construction
FR981312A (fr) * 1948-12-28 1951-05-24 Tocover Soc Matière plastique armée
GB708568A (en) * 1951-12-14 1954-05-05 Ici Ltd Improvements in and relating to corrugated materials suitable for use in buildings
US3212956A (en) * 1962-12-18 1965-10-19 Yoshikawa Mitsue Building material
DE1484294A1 (de) * 1963-03-13 1969-01-16 Meyer Dr Karl Fugenabdeckung fuer aneinanderstossende Profilplatten
CH419537A (de) * 1964-02-26 1966-08-31 Schmidberger Heinrich Mehrschichtiges, folienförmiges Dachdeckmaterial
DE1709019C3 (de) * 1966-11-07 1975-06-26 Schoop, Traugott, Baden, Aargau (Schweiz) Vorrichtung zum Überbrücken der Fuge zwischen den Enden von am Rand eines Flachdachs angeordneten Profilen
FR2076758A5 (en) * 1970-01-27 1971-10-15 Cegebat Gp Soundproof building panels - comprising metal/plastic/metal laminates
DE2243836A1 (de) * 1972-09-07 1974-03-14 Friedrich Dipl Kfm Eilhauer Bauelement, aus flexiblen teilen zusammengesetzt
FR2214307A7 (no) * 1973-01-16 1974-08-09 Michelotti Leopoldo
FR2321962A1 (fr) * 1975-08-25 1977-03-25 Mines Fond Zinc Vieille Procede d'assemblage d'un element de zinc et d'un element de plomb et complexe preassemble ainsi realise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032058A1 (de) * 1989-10-12 1991-05-02 Rasmussen Kann Ind As Platten- oder bahnfoermiges dachabdichtungsmaterial
DE4032058C2 (de) * 1989-10-12 1998-10-01 Rasmussen Kann Ind As Dachabdichtungsmaterial
DE19747217C1 (de) * 1997-10-25 1999-04-15 Mage Gmbh First- oder Gratbelüftungselement

Also Published As

Publication number Publication date
DE3176996D1 (en) 1989-04-13
ES257713U (es) 1981-11-01
EP0038222A2 (en) 1981-10-21
DK148064B (da) 1985-02-18
NO157670B (no) 1988-01-18
DK365080A (da) 1981-10-16
NO811304L (no) 1981-10-16
DK148064C (da) 1985-07-29
EP0038222A3 (en) 1981-12-23
ES257713Y (es) 1982-05-01
NO157670C (no) 1988-04-27

Similar Documents

Publication Publication Date Title
EP0038222B1 (en) Deformable roof sealing material
EP0755474B1 (en) A deformable sheet material for roof flashing purposes and a method of manufacturing such a material
US4396665A (en) Self-adhesive roofing laminates having metal layer therein
CA2191459C (en) Roofing termination device
US5414964A (en) Flashing for buildings
EP1012424B1 (en) A deformable roof flashing material and a method for the manufacture of a flashing rail with a skirt made from the roof flashing material
EP0760043B1 (en) A plastically deformable flashing material, in particular for roof flashing purposes and a method of manufacturing such a material
JPH01318646A (ja) 屋根の棟を仕上げるために使用される封止ストリップ
RU2090715C1 (ru) Бессвинцовый плитообразный гидроизоляционный материал для крыш
US3280528A (en) Roof installation having cellular base sheets
US5317845A (en) Flashing for buildings
CA1281880C (en) Flashings for buildings
JPH0329942B2 (no)
EP3936679A1 (en) A skirt member for use in a flashing for a roof penetrating structure and a method for making a skirt member
CN1187229A (zh) 形成屋顶端部的装置
WO1997040240A1 (en) Panel for roofs
JPS635534B2 (no)
NZ332354A (en) Panels for roofs comprise sheets with strengthening members underneath the folds or ridges

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

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

AK Designated contracting states

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

17P Request for examination filed

Effective date: 19820607

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 FR GB IT LI LU NL SE

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

Ref country code: SE

Effective date: 19890308

Ref country code: NL

Effective date: 19890308

Ref country code: LI

Effective date: 19890308

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19890308

Ref country code: CH

Effective date: 19890308

Ref country code: BE

Effective date: 19890308

Ref country code: AT

Effective date: 19890308

REF Corresponds to:

Ref document number: 41193

Country of ref document: AT

Date of ref document: 19890315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3176996

Country of ref document: DE

Date of ref document: 19890413

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: 19890430

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ROTO FRANK AKTIENGESELLSCHAFT

Effective date: 19891205

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

Owner name: V. KANN RASMUSSEN INDUSTRI A/S

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19910209

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

Ref country code: GB

Payment date: 19970404

Year of fee payment: 17

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

Ref country code: FR

Payment date: 19970411

Year of fee payment: 17

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

Ref country code: DE

Payment date: 19970621

Year of fee payment: 17

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 NON-PAYMENT OF DUE FEES

Effective date: 19980415

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

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980430

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980415

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

Ref country code: DE

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

Effective date: 19990202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO