EP1641987A1 - Sheet metal element for canopies, roofings and the like - Google Patents

Sheet metal element for canopies, roofings and the like

Info

Publication number
EP1641987A1
EP1641987A1 EP03736001A EP03736001A EP1641987A1 EP 1641987 A1 EP1641987 A1 EP 1641987A1 EP 03736001 A EP03736001 A EP 03736001A EP 03736001 A EP03736001 A EP 03736001A EP 1641987 A1 EP1641987 A1 EP 1641987A1
Authority
EP
European Patent Office
Prior art keywords
foil
sheet
element according
metal
metal sheet
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.)
Withdrawn
Application number
EP03736001A
Other languages
German (de)
French (fr)
Inventor
Maurizio Morandi
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.)
Metecno SpA
Original Assignee
Metecno SpA
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 Metecno SpA filed Critical Metecno SpA
Publication of EP1641987A1 publication Critical patent/EP1641987A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E04D13/008—Provisions for reducing rain noise
    • 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
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1643—Insulation of the roof covering characterised by its integration in the roof structure the roof structure being formed by load bearing corrugated sheets, e.g. profiled sheet metal roofs
    • E04D13/165—Double skin roofs
    • 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
    • E04D13/17—Ventilation of roof coverings not otherwise provided for
    • 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
    • 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
    • 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

  • Sheet metal element for canopies, roofings and the like
  • the invention relates in general to coverings, roofs, canopies, cantilever roofs, and the like, formed by elements of corrugated, profiled or otherwise ribbed sheet metal.
  • the sheet metal even if it is suitably ribbed, does not have per se good insulating properties and therefore the range of applications of the roofings produced with sheet metal alone, is limited to cases in which there are no particular requirements in terms of temperature and/or energy saving to be complied with.
  • insulating material such as mineral wool
  • sandwich panels which have an insulating core of polymer foam (polyurethane, phenolic or the like) interposed between two outer sheet metal faces.
  • the present invention aims at overcoming this situation.
  • a prefabricated insulating element of sheet metal for roofs and coverings in general, which has improved thermal insulation properties compared to known elements of ribbed sheet metal alone, and which is at the same time light, economical and simpler to install than insulations of mineral wool or composite panels.
  • This object is achieved by a prefabricated element for coverings, which comprises a profiled metal sheet with longitudinal ribs that give it a degree of load-bearing capacity, the element being characterised in that it has a thin foil applied to the metal sheet itself so that the ribs thereof are closed, thereby defining channels wherein air can flow.
  • a roofing element of this type achieves three important results.
  • the first one is that when the element is mounted in an inclined position to form the inclined surfaces of a roof, or of a canopy or any other covering in general, air can circulate in the above-mentioned channels according to an ascending direction by effect of convection: the heat absorbed by the sheet metal because of solar radiation, is therefore partially taken away by convection with the circulating of air.
  • the second result is that the foil applied to the profiled metal sheet is also a barrier to the transmission of radiant heat into the surrounding atmosphere when the metal sheet reaches elevated temperatures, as can occur at given times of the year or in zones having hot climates.
  • the foil is preferably made from aluminium or another light metal, optionally surface- plated, but it is also possible to use plastics or non-metallic films treated with the above-mentioned paints or varnishes (for example, based on aluminised compounds, or the like).
  • the surface of the foil not facing the profiled metal sheet is also painted, varnished, veneered or coated, with a protective film of plastics material, silicone and the like.
  • Figure 1 shows schematically a covering with a prefabricated element according to the invention
  • Figure 2 is a cross-section of the element in Figure 1.
  • reference numeral 1 generally designates an element for coverings according to this invention, made from a profiled metal sheet 2 under which a thin foif 3 is applied.
  • the foil 3 is fixed to the metal sheet 2 at the horizontal zones 5 thereof; the fixing is preferably achieved by adhesive bonding, since it is easy to do in a continuous production line for manufacturing the elements 1 and is effective for the various materials with which the foil 3 can be produced and assembled (at most, it is a matter of selecting the most appropriate adhesive).
  • the foil 3 is of metal, such as aluminium or the like, it is possible to carry out the fixing by welding (spot-welding or continuous-seam welding). It should further be noted that if the foil 3 is made of plastics film, it is also possible to carry out the fixing by heat-sealing the film to the metal sheet.
  • the element 1 thus produced is used with other elements identical thereto to form a roof, by installing it in an inclined condition with the channels 6 of the various elements 1, defined by the trapezoidal ribs of the sheet metal 2 and by the foil 3, aligned longitudinally; naturally, the channels 6 are inclined according to the slope of the covering, as schematically shown in Figure 1 with reference to the sloping faces of a roof (one of which is outlined in broken line), each of which is formed by a single element 1.
  • the prefabricated element 1 fulfils the initial object set out for the invention and indicated above.
  • the circulation of air in the channels 6 of the profiled metal sheet 2, obtained by applying the foil 3 thereto allows a heat-exchange by convection which cools down the sheet metal; furthermore, the radiant heat emitted by the sheet metal is screened by the foil 3 which, to this end, can be of a material suitably reflective in the range of infrared rays, or which is coated with paints or varnishes having such properties.
  • the material of the foil reference has already been made to the use of metals such as aluminium, or plastics films (based on polyolefms, such as high- density or low-density polyethylene HDPE or LDPE, polypropylene and other polymers of different types), whilst the paints, the varnishes or the reflective coatings can contain metallic compounds or the like.
  • metals such as aluminium, or plastics films (based on polyolefms, such as high- density or low-density polyethylene HDPE or LDPE, polypropylene and other polymers of different types)
  • the paints, the varnishes or the reflective coatings can contain metallic compounds or the like.
  • the surface of the foil 3 not facing the metal sheet 2 can be subjected to finishing in order to protect it against external agents, to colour it or to make it more suitable to the uses for which the element is intended.
  • surface of the foil 3 whether produced from metal or plastics material, can be painted, varnished, veneered or coated in the most appropriate manner and with the most appropriate materials.
  • the element for roofings according to the invention is suitable for being produced industrially in a continuous manner with plants wherein, downstream to the normal profiling machines used to form the ribs on the sheet metal, there is also provided a station for applying the foil.
  • the latter can be unrolled from a coil and adhesively bonded to the metal strip which advances through the plant downstream of the profiling machine, by applying adhesive thereto (by spraying, with a roller or in another manner). It will be appreciated that it is possible in this manner to produce an element for roofings at low cost, less than that of composite insulation panels or than it is necessary for providing mineral wool under the metal sheets of existing roofings.
  • the element so produced is also light since in practice its weight is increased, with reference to that of the ribbed metal sheet alone, by the weight of the foil 3; however the foil 3 is barely relevant, given that the thickness thereof is less than that of the ribbed metal sheet and is preferably a ' few tenths of millimetre.
  • the materials forming it such as aluminium or plastics films, are light materials.
  • the profile of the ribs of the metal sheet 2 can be different from the trapezoidal profile; the latter profile has the advantage of having flat zones, at which it is readily possible to fix the foil 3 on the metal sheet 2 but, as mentioned above, the same effect can also be achieved with the typical ondulated profile of the metal sheets, or with other profiles.
  • the dimensions of the channels 6 formed by the ribs and the distance between each of them can be greater than that shown in the drawings; in other words, depending on the convection heat exchange which is required to obtain, the number of channels 6 (and therefore of ribs) per unit of surface area of the metal sheet 2, and the dimensions thereof, can vary from one case to another.
  • the metal sheet has ribs which are less closely arranged, others in which they are more numerous and/or smaller, and so on.
  • metal sheet be replaced by non-metallic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

An element for making canopies and covering in general is disclosed, constituted by a profiled metal sheet (2) to which is applied a foil (3) of aluminium or the like, sealing the ribs thereof at the lower side and defining channels (6). A circulation of air by convection can be established inside the channels (6), thereby allowing heat to be exchanged with the metal sheet (2). The element for coverings is simple to produce and light, so as to be easy to fit.

Description

Title
Sheet metal element for canopies, roofings and the like
DESCRIPTION
The invention relates in general to coverings, roofs, canopies, cantilever roofs, and the like, formed by elements of corrugated, profiled or otherwise ribbed sheet metal.
As -is known, the use of sheet metal for the above-mentioned applications is quite widespread since it allows to make low cost roofs that can be fitted relatively easily and quickly; furthermore, since they are also light, the sheet metal roofings do not require particularly strong support structures so that the constructions
Where they are used, are also simple and economical to build.
However the sheet metal, even if it is suitably ribbed, does not have per se good insulating properties and therefore the range of applications of the roofings produced with sheet metal alone, is limited to cases in which there are no particular requirements in terms of temperature and/or energy saving to be complied with.
When this is not the case, use is made of a layer of insulating material (such as mineral wool) fitted underneath the ribbed sheet metal which forms the roofing, or composite panel, also known as sandwich panels are used, which have an insulating core of polymer foam (polyurethane, phenolic or the like) interposed between two outer sheet metal faces.
However, neither of these alternatives is advantageous as the elements of profiled sheet metal alone, from the point of view of the costs of the roofing components or of their weight.
The present invention aims at overcoming this situation.
That is to say, it aims at providing a prefabricated insulating element of sheet metal for roofs and coverings in general, which has improved thermal insulation properties compared to known elements of ribbed sheet metal alone, and which is at the same time light, economical and simpler to install than insulations of mineral wool or composite panels. This object is achieved by a prefabricated element for coverings, which comprises a profiled metal sheet with longitudinal ribs that give it a degree of load-bearing capacity, the element being characterised in that it has a thin foil applied to the metal sheet itself so that the ribs thereof are closed, thereby defining channels wherein air can flow.
A roofing element of this type achieves three important results. The first one is that when the element is mounted in an inclined position to form the inclined surfaces of a roof, or of a canopy or any other covering in general, air can circulate in the above-mentioned channels according to an ascending direction by effect of convection: the heat absorbed by the sheet metal because of solar radiation, is therefore partially taken away by convection with the circulating of air.
It just matters to point out that through-openings for the air flowing to and from the outside, are provided in the roofing (for example, in the region of the eaves and/or the ridge).
The second result is that the foil applied to the profiled metal sheet is also a barrier to the transmission of radiant heat into the surrounding atmosphere when the metal sheet reaches elevated temperatures, as can occur at given times of the year or in zones having hot climates.
This effect can be further enhanced by using appropriate materials for the foil or by coating it with paints or varnishes which reflect infrared rays; to this end the foil is preferably made from aluminium or another light metal, optionally surface- plated, but it is also possible to use plastics or non-metallic films treated with the above-mentioned paints or varnishes (for example, based on aluminised compounds, or the like).
According to a preferred embodiment of the invention, the surface of the foil not facing the profiled metal sheet, is also painted, varnished, veneered or coated, with a protective film of plastics material, silicone and the like. The third result is that, if the foil is made of a plastics film, the roofing element has improved sound-insulating performance in relation to impact noises (rain and hail), than a non-coated ribbed sheet metal. All of these features and further ones, as well, are set out in the claims appended to this description; they will be better appreciated from the explanation given below in connection with a preferred and non-limiting embodiment of the invention, illustrated in the appended drawings, wherein: Figure 1 shows schematically a covering with a prefabricated element according to the invention; Figure 2 is a cross-section of the element in Figure 1. hi the drawings reference numeral 1 generally designates an element for coverings according to this invention, made from a profiled metal sheet 2 under which a thin foif 3 is applied.
The foil 3 is fixed to the metal sheet 2 at the horizontal zones 5 thereof; the fixing is preferably achieved by adhesive bonding, since it is easy to do in a continuous production line for manufacturing the elements 1 and is effective for the various materials with which the foil 3 can be produced and assembled (at most, it is a matter of selecting the most appropriate adhesive).
However it is possible to provide fixing systems alternative to adhesives by making use, if necessary, of the properties of the materials connected; for example, if the foil 3 is of metal, such as aluminium or the like, it is possible to carry out the fixing by welding (spot-welding or continuous-seam welding). It should further be noted that if the foil 3 is made of plastics film, it is also possible to carry out the fixing by heat-sealing the film to the metal sheet. The element 1 thus produced is used with other elements identical thereto to form a roof, by installing it in an inclined condition with the channels 6 of the various elements 1, defined by the trapezoidal ribs of the sheet metal 2 and by the foil 3, aligned longitudinally; naturally, the channels 6 are inclined according to the slope of the covering, as schematically shown in Figure 1 with reference to the sloping faces of a roof (one of which is outlined in broken line), each of which is formed by a single element 1.
This allows the circulation of air inside the channels by means convective effect, as already explained before. It will be appreciated that the prefabricated element 1 fulfils the initial object set out for the invention and indicated above.
Indeed it is evident that the circulation of air in the channels 6 of the profiled metal sheet 2, obtained by applying the foil 3 thereto, allows a heat-exchange by convection which cools down the sheet metal; furthermore, the radiant heat emitted by the sheet metal is screened by the foil 3 which, to this end, can be of a material suitably reflective in the range of infrared rays, or which is coated with paints or varnishes having such properties.
With regard to the material of the foil, reference has already been made to the use of metals such as aluminium, or plastics films (based on polyolefms, such as high- density or low-density polyethylene HDPE or LDPE, polypropylene and other polymers of different types), whilst the paints, the varnishes or the reflective coatings can contain metallic compounds or the like.
Moreover, it should be pointed out that the surface of the foil 3 not facing the metal sheet 2, can be subjected to finishing in order to protect it against external agents, to colour it or to make it more suitable to the uses for which the element is intended.
For this purpose that surface of the foil 3, whether produced from metal or plastics material, can be painted, varnished, veneered or coated in the most appropriate manner and with the most appropriate materials.
The element for roofings according to the invention is suitable for being produced industrially in a continuous manner with plants wherein, downstream to the normal profiling machines used to form the ribs on the sheet metal, there is also provided a station for applying the foil.
The latter can be unrolled from a coil and adhesively bonded to the metal strip which advances through the plant downstream of the profiling machine, by applying adhesive thereto (by spraying, with a roller or in another manner). It will be appreciated that it is possible in this manner to produce an element for roofings at low cost, less than that of composite insulation panels or than it is necessary for providing mineral wool under the metal sheets of existing roofings. The element so produced is also light since in practice its weight is increased, with reference to that of the ribbed metal sheet alone, by the weight of the foil 3; however the foil 3 is barely relevant, given that the thickness thereof is less than that of the ribbed metal sheet and is preferably a ' few tenths of millimetre.
Furthermore, the materials forming it such as aluminium or plastics films, are light materials.
Naturally, variants of the invention are possible relative to the above-mentioned embodiment.
Firstly, it is evident that the profile of the ribs of the metal sheet 2 can be different from the trapezoidal profile; the latter profile has the advantage of having flat zones, at which it is readily possible to fix the foil 3 on the metal sheet 2 but, as mentioned above, the same effect can also be achieved with the typical ondulated profile of the metal sheets, or with other profiles.
Furthermore, the dimensions of the channels 6 formed by the ribs and the distance between each of them can be greater than that shown in the drawings; in other words, depending on the convection heat exchange which is required to obtain, the number of channels 6 (and therefore of ribs) per unit of surface area of the metal sheet 2, and the dimensions thereof, can vary from one case to another.
Therefore, there will be cases in which the metal sheet has ribs which are less closely arranged, others in which they are more numerous and/or smaller, and so on.
Finally, it should not be excluded that the metal sheet be replaced by non-metallic material.
All of these variants fall within the scope of the appended claims.

Claims

1. Element for roofings, comprising a profiled sheet (2) with longitudinal ribs, characterised in that it comprises a foil (3) applied on the sheet so as to close the ribs and to define therewith channels (6) for the circulation of air.
2. Element according to claim 1, wherein the sheet (2) is a metal sheet.
3. Element according to claims 1 and 2, wherein the channels (6) are parallel.
4. Element according to the preceding claims, wherein the foil (3) has a thickness less than that of the metal sheet (2).
5. Element according to the preceding claims, wherein the foil (3) is made of, or coated with, material which reflects infrared rays, at least at the side thereof facing the metal sheet (2).
6. Element according to the preceding claims, wherein the foil (3) is made of metal.
7. Element according to claim 6, wherein the foil (3) is a film of aluminium or alloys thereof.
8. Element according to claims 1 to 5, wherein the foil (3) is a polymeric film.
9. Element according to the preceding claims, wherein the foil (3) is fixed to the metal sheet (2) by adhesive bonding or welding.
10. Cover for constructions, characterised in that it comprises a plurality of elements according to the preceding claims, arranged in an inclined state with the ventilated channels orientated according to this inclination.
EP03736001A 2003-06-20 2003-06-20 Sheet metal element for canopies, roofings and the like Withdrawn EP1641987A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000382 WO2005003485A1 (en) 2003-06-20 2003-06-20 Sheet metal element for canopies, roofings and the like

Publications (1)

Publication Number Publication Date
EP1641987A1 true EP1641987A1 (en) 2006-04-05

Family

ID=33561932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03736001A Withdrawn EP1641987A1 (en) 2003-06-20 2003-06-20 Sheet metal element for canopies, roofings and the like

Country Status (3)

Country Link
EP (1) EP1641987A1 (en)
AU (1) AU2003242288A1 (en)
WO (1) WO2005003485A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905390A1 (en) * 2006-08-31 2008-03-07 Tdi Isolation Antilles Sarl Coating material for use as e.g. building`s roof coating, has thermal insulating component extended on ribbed or wavy foil by using self-adhesive mass, where component is constituted of polyethylene foam between foil and polyester film
FR2910504B1 (en) * 2006-08-31 2011-05-06 Tdi Isolation Antilles BUILDING COATING MATERIAL, THERMALLY INSULATED AND ALSO PREFERABLY PHONIC
FR2905391A1 (en) * 2006-08-31 2008-03-07 Tdi Isolation Antilles Sarl Coating material for use as e.g. building`s roof coating, has thermal insulating component extended on ribbed or wavy foil by using self-adhesive mass, where component is constituted of polyethylene foam between foil and polyester film

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR780436A (en) * 1933-12-29 1935-04-26 Fibrociment Et Des Revetements Improvements made to the elements to constitute coatings, covers, partitions, etc., in particular those made of asbestos cement
US2150217A (en) * 1938-03-12 1939-03-14 Gettelman Fredrick Roof
GB783641A (en) * 1954-05-24 1957-09-25 Wendel Et Cie De Improvements in and relating to a composite element for buildings and like structures
US3197926A (en) * 1963-01-17 1965-08-03 Robertson Co H H Hanger means for sheet metal sectional roofing and flooring
NL6413050A (en) * 1964-11-09 1966-05-10
FR2564880A1 (en) * 1984-05-23 1985-11-29 Blanchard Georges Surface or wall panel made of corrugated sheet metal for providing high thermal protection by dissipating the heat due to solar radiation
FR2737236B1 (en) * 1995-07-26 1997-09-05 Alcaud Sa COATING PANEL WITH COMPOSITE STRUCTURE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005003485A1 *

Also Published As

Publication number Publication date
AU2003242288A1 (en) 2005-01-21
WO2005003485A1 (en) 2005-01-13

Similar Documents

Publication Publication Date Title
US9314994B2 (en) Pedestaled roof underlayment
US4393859A (en) Solar collector roof
US8739484B2 (en) Roof panel systems for building construction
CA1244622A (en) Safety reinforced roof insulation
EP1896784B1 (en) Solar collector
CA2738267A1 (en) Above deck roofing ventilation system
US9228355B2 (en) Above-deck roof venting article
US9297164B2 (en) VIP roofing insulation
EP1896785B1 (en) Solar collector
US9145690B2 (en) System, method and apparatus for dark-colored siding panel product
WO2007082559A1 (en) Insulation material comprising phase change material (pcm) for buildings
WO2009150639A1 (en) An insulating panel
US4335708A (en) Solar collector
US10358815B2 (en) Energy-efficient mobile buildings
JP2009167728A (en) Sheet-waterproofing roof
US20210108417A1 (en) Integrated roof system with engineered wood
EP1641987A1 (en) Sheet metal element for canopies, roofings and the like
US20230313533A1 (en) Integrated roof system with engineered wood
CA2900019A1 (en) Composite roof systems and methods of installation
US20210285216A1 (en) Integrated ventilation and flashing in integrated roof system with engineered wood
US20230010965A1 (en) Integrated roof system with integrated driplap edge
EP1869372A1 (en) Composite system
JP2001049807A (en) Double-layer day-lighting roof for folded plate roof
JP2020023872A (en) Insulation structure of double roof, lower roof structure of insulation structure of double roof and forming method of insulation structure of double roof
CA1178145A (en) Solar collector roof

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

17P Request for examination filed

Effective date: 20060116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090901