AU2004212978B2 - Fire-retardant mattress - Google Patents
Fire-retardant mattress Download PDFInfo
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- AU2004212978B2 AU2004212978B2 AU2004212978A AU2004212978A AU2004212978B2 AU 2004212978 B2 AU2004212978 B2 AU 2004212978B2 AU 2004212978 A AU2004212978 A AU 2004212978A AU 2004212978 A AU2004212978 A AU 2004212978A AU 2004212978 B2 AU2004212978 B2 AU 2004212978B2
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- AU
- Australia
- Prior art keywords
- mattress
- layer
- fire
- fire barrier
- barrier fabric
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/001—Fireproof means
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- Bedding Items (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A fire barrier fabric quilted under ticking material of a bedding product. This specific mattress design improves resistance to fire damage to the mattress and surroundings and reduces the generation of harmful smoke. Adding this fire barrier fabric to the quilt panel does not compromise the intended use of the end use product. The bedding products can also improve the fire resistance of the border panel of a mattress. The fire barrier fabric is placed directly behind the standard ticking material and can be applied to all standard bedding sizes
Description
- 1 FIRE RETARDANT MATTRESS Background of the Invention The systems and methods described herein relate to fire retardant mattresses and methods for manufacturing fire retardant mattresses. 5 Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field. In general, mattresses are manufactured by covering an assembly of coil springs with a combination of polyurethane form and/or matting which is then enclosed in a cover 10 ticking or other material. This combination provides a light durable and comfortable mattress at a reasonable cost. Every home, hotel, dormitory, hospital and many other facilities have several to dozens of mattresses, and mattresses tend to be large items that are kept in mainly living areas. Recently, fire prevention efforts have directed some attention to developing new 15 mattresses that have a reduced likelihood to catch on fire or burn during a fire. To this end, mattress manufacturers have developed a number of different fire retardant mattresses, each of which offers some benefits for reducing the likelihood that a fire will start or spread because the material used in the construction of a mattress represents a large amount of fuel able to support that fire. 20 For example, bed pads have been developed that can be placed on top of a bed and cover the sides of a bed. These bed pads are generally made of fire retardant materials that protect the mattress from exposure to a flame or heat and tend to reduce the likeliness that the mattress will catch on fire. Although these bed pads have been effective, they are uncomfortable and unsightly. Consequently consumers have a tendency to remove these 25 bed pads after a period of time and once removed the efficacy of the bed pad is negated. To address this issue, other mattress manufacturers have developed mattresses that have flame and/or fire retardant material built into the mattress cover. Typically, these fire retardant materials include fiberglass, asbestos, or metal foil and work well in reducing the likelihood that the mattress will catch on fire. However, these materials are uncomfortable -2 to sleep on and are therefore disfavored by consumers. Metal foils made of, for example aluminum, have several drawbacks, such as a limited breathability of the fabric and a reduced cushioning aspect of the upholstered article. Other these materials have a tendency to dry out, to become flaky, and to ultimately 5 break down, making the visible sleeping surface if not unusable, so at least unsightly. Consequently, the life expectancy of a flame retardant mattress that includes a layer of fiberglass, asbestos and/or aluminum foil, can be significantly less than the expectant product life of a normal mattress. Because of the need for changing the established mattress manufacturing process to 10 accommodate the new materials and the perceived reluctance of consumers to accept the different feel and/or appearance of the sleeping surface, mattress manufacturers have so far been unmotivated to develop fire retardant mattresses. Accordingly, there is a need in the art for a fire retardant mattress that is facile to manufacture, has competitive product life and provides the comfort and durability expected 15 by consumers purchasing a mattress. Summary of the Invention It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative. The invention in some embodiments is directed to a fire-retardant quilt panel for a 20 mattress and to a fire- retardant mattress construction. The invention in other embodiments is further directed to a method for manufacturing a fire-retardant mattress. According to one aspect of the invention, there is provided a fire-retardant mattress comprising a quilt panel having a mattress padding layer, 25 an outer ticking layer forming a sleep surface, a fire barrier fabric layer disposed between the mattress padding layer and the outer ticking layer, wherein the fire barrier fabric layer is quilted to the outer ticking layer to form a quilted sleeping surface of the mattress, -3 a border panel disposed around a peripheral area of the mattress, said border panel including an outer ticking layer and a fire barrier fabric disposed between the peripheral area of the mattress and the outer ticking layer, and a fire barrier fabric on a lower exterior surface of the mattress to provide a one-sided 5 mattress. According to another aspect of the invention, there is provided a fire-retardant mattress comprising: a frame; an upholstery topper layer adjacent to at least a top surface of the frame, 10 an outer ticking forming a sleep surface; and a fire barrier fabric disposed between the upholstery topper layer and the outer ticking layer. Embodiments of the invention may include one or more of the following features. The fire barrier fabric can be in direct contact with the outer ticking layer and more 15 particularly can be affixed to the outer ticking layer, for example, by gluing with an adhesive or by stitching. The fire barrier fabric can also be placed underneath the border panel extending around the sides of the mattress frame. The quilt panel advantageously is constructed to meet regulatory requirements for flammability, such as the California Bureau of Home Furnishings Technical Bulletin 129 Flammability Test Procedure. 20 According to yet another aspect of the invention, there is provided a method of manufacturing a mattress having a fire-retardant quilt panel, comprising providing a mattress frame, disposing a backing material on the mattress frame, providing a fire retardant quilt panel by 25 placing a topper layer adjacent to at least a top surface of the frame, placing a fire barrier fabric on the upholstery topper layer, and placing an outer ticking over and in direct contact with the fire barrier fabric, quilting the outer ticking layer, the fire barrier layer and the upholstery topper layer together, thereby forming the fire-retardant quilt panel as a composite structure 30 with a quilted sleeping surface, - 3a placing a border panel around a peripheral area of the mattress, said border panel including an outer ticking layer and a fire barrier fabric disposed between the peripheral area of the frame and the outer ticking layer, and applying the fire barrier fabric to a lower exterior surface of the mattress to provide 5 a one-sided mattress. Further features and advantages of the present invention will be apparent from the following description of preferred embodiments and from the claims. Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive 10 sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to". Brief Description of the Drawings The following figures depict certain illustrative embodiments of the invention in which like reference numerals refer to like elements. These depicted embodiments are to be 15 understood as illustrative of the invention and not as limiting in any way.
WO 2004/073799 PCT/US2004/004595 FIG. 1 is an illustrative partially exploded view of an innerspring construction, padding and ticking layers with a fire-barrier layer FIGS. 2A and 2B show in greater detail exemplary embodiments of a mattress cover 5 with a fire-barrier layer; FIG. 3 shows the sample weight loss of the tested mattress during the test; FIG. 4 shows the heat release rate of the tested mattress during the test; and 10 FIG. 5 shows the total heat release of the tested mattress during the test. Description of the Illustrated Embodiments 15 A mattress construction with a quilted ticking is described that incorporates an effective fire-retardant barrier without changing the appearance and feel of the mattress sleeping surface. In particular, described herein are mattresses, toppers and methods for making mattresses that provide bedding products having improved resistance to open flame ignition. Although the systems and methods described herein 20 relate to mattress and other bedding products, it will be apparent to those of skill in the art that other products may result from the methods described herein, without departing from the scope of the invention. Referring first to FIG. 1, a mattress 10, shown here in a partially exploded view, 25 consists of an innerspring indicated by reference numerals 11 and 13 having at least one upholstery topper layer 16, and a second optional layer 18 and at least one quilt layer 12 about the top and bottom surfaces of the innerspring. The level of support and comfort provided by such a mattress, often referred to as "firmness," is a function of both the number and characteristics of the upholstery topper and the quilting panel 4 WO 2004/073799 PCT/US2004/004595 layers about the top and bottom of the innerspring and of the performance characteristics of the innerspring. The innerspring (not shown in detail) generally comprises border wires forming a 5 rectangular structure and, within the structure, a plurality of interconnected coil springs. The coil springs are generally disposed in rows and columns over the entire area of the rectangular structure. When designing an innerspring, a number of variables which affect innerspring performance must be taken into consideration. Some of these variables include the coil count, the coil density, the coil shape, the 10 number of turns of the coil, the gauge of the wire, the heat treatment of the wire, the technique used to assemble the innerspring, and the edge treatment. The innerspring construction may be an open-coil construction as illustrated, or may also be a pocketed-coil type as identified in U.S. Pat. No. 4,234,933 to Stumpf, which is incorporated herein by reference. However, any suitable innerspring or innercore 15 may be employed. For example, the innercore may be foam, latex, open coil, pocketed coil, or a combination thereof The size of the innercore may vary according the application and for example, may support the entire sleeping surface, or may be somewhat smaller and provide space for one or more edge supports that sit at the peripheral edge of the mattress. Examples of edge supports may include foam rails 20 placed along the side of the mattress or pocketed springs having a selected firmness. As depicted, each upholstery topper layer commonly includes an insulating layer 18 of material in direct contact with the innerspring 11 which may mask or insulate from the sleeper the noise produced by the interaction between the components of the 25 innerspring and also to prevent softer upholstery materials from falling or pocketing into the innerspring. This insulating layer 18 can be constructed of, for example, wire mesh, plastic mesh, woven fabric, or non-woven fabric, or any suitable material. Each upholstery topper layer can further include a layer of padding material 16 which affects the firmness of the mattress. This layer of padding material may be located 30 directly adjacent to the insulating layer 18 and can be constructed of natural fibers 5 WO 2004/073799 PCT/US2004/004595 such as, for example, cotton, synthetic fibers, foam, or a fiber/foam combination. It should be understood that additional layers of padding can be provided for each upholstery topper layer, the number of padding layers depending upon the comfort level and quality of the mattress. The upper layer or the topper may include a layer 14 5 of a woven material that adds to the firmness of the mattress 10. As shown in more detail in FIG. 2A, a quilt panel layer 21 is provided adjacent to each upholstery layer 28. The quilt panel layer 21 of the mattress 10 provides the direct contact with the sleeper and thus the immediate perception of softness or "feel." 10 Each quilt panel layer 21 commonly includes a layer of mesh or cloth bottom or backing material 28, a layer of foam material 26 positioned over the backing material 28, a layer of fiber or filler material (quilt fill) may optionally be positioned over the foam 26, and finally a layer of ticking forming the cover 22. The number of layers of foam and quilt fill 26 in the quilt panel layer can vary depending on the desired 15 comfort level, quality, and expense of the mattress. The entire layer can be stitched together, typically in a conventional quilting machine (not shown) with thread to form a quilt pattern. The quilt pattern holds the components of the layer together and provides a composite structure to the quilt panel layer. 20 In the exemplary fire-retardant mattress, a fire barrier fabric 24 which can be incorporated in the quilt panel structure 21 during the quilting operation is interposed between the layer of fiber or filler material 26 and the ticking 22. The ticking layer 22 may be a conventional ticking layer, or a layer of lace, cotton fabric or any other suitable material. The fire barrier fabric 24 can also be attached to one of the layers, 25 for example, the cover, with an adhesive, or bonded in some other way to the lower surface of the ticking 22. The fire barrier fabric 24, when used as the backing material, can significantly reduce the fire hazard due to the material properties of the fire barrier fabric 24 that will hinder the propagation of a fire to the entire mattress body. For 6 WO 2004/073799 PCT/US2004/004595 added fire protection, the fire barrier fabric 24 can also be placed directly under the border ticking layer. As described above, the fire barrier layer 24, in any embodiment, may be applied to the top surface, as well as the border panels, including header and footer and 5 optionally, the lower surface. FIG. 2B depicts an alternate embodiment of the mattresses described herein. In particular, FIG. 2B depicts a mattress topper 21 that includes a foam/fill layer 26 that is disposed between two opposing layers of ticking 22 and two opposing layers of fire 10 barrier material 24. The mattress topper 21 depicted in FIG. 2B may be a pillow top topper of the type commonly attached to the upper surface of a mattress, including a mattress 10 having a fire barrier layer disposed beneath the ticking layer 22 on the exterior surface of the mattress. As described with reference to FIG. 2B, the fire barrier layers 22, may be stitched, glued or other wise bonded to the ticking layer, to 15 facilitate providing a quitable layer of material that provides for a mattress tops that meets the aesthetic expectations of the consumer. The joining of the fire barrier and the ticking material forms a laminate that reduces the likelihood that an open flame will ignite the inner material of the mattress 10, and at the same time provides a cosmetically appealing exterior surface. 20 The exemplary quilted mattress cover depicted in FIGS. 2A and 2B and tested in the manner described below included Ultrawool, /4 " P7L and 3/8 " P34 polyester over 1 3/4 " convoluted foam, as well as 2 " P-34 Poly and S4-FI fiber next to the coil unit. The dimensions of the tested mattress were 38" x 74 /2" with a total mattress weight of 46 lbs. The fire blocking layer consists of Firegard@ LWB, sold by Chiquola 25 Industrial Products, LLC, Honea Path, SC, USA, and extends over the mattress panels and the borders. The flammability of the outer ticking was tested under the California Bureau of Home Furnishings Technical Bulletin 129 Flammability Test Procedure for Mattresses for 7 WO 2004/073799 PCT/US2004/004595 Use in Public Buildings. The purpose of this test method is to determine the burning behavior of mattresses used in public occupancies by measuring specific fire-test responses when the mattress is subjected to a specified flaming ignition source under well ventilated conditions. A mattress fails to meet the requirements of this test 5 procedure if any of the following criteria are exceeded: (1) weight loss due to combustion of 3 pounds or greater in the first 10 minutes of the test; (2) a maximum rate of heat release of 100 kW or greater; or (3) a total heat release of 25 MJ or greater in the first 10 minutes of the test. The type of ignition chosen (flaming source) is common in both accidental and intentional fires, for example, ignition by cigarettes. 10 The recorded test data typically include room smoke opacity; weight loss; smoke release rate; total smoke release; carbon monoxide concentration; heat release rate; total heat release; and temperature measurements above and around the mattress. The fire was simulated by placing a propane burner centrally and parallel to the 15 bottom horizontal surface at a distance of 1" from the vertical side panel of the mattress. The burner was allowed to burn for 180 seconds. Two seconds after the test started, the mattress ticking material started to melt and ignited after 4 seconds. A little more than 1 minute after the start of the test, molten ticking started to drip onto the floor. Flames ceased 6 minutes into the test, and after 17 minutes all smoke and 20 smoldering ceased. FIG. 3 depicts graphically the weight loss in lbs of the exemplary tested fire-retardant mattress during the test duration of 18 minutes. The total weight loss 10 minutes into the test is less than 0.1 lb, which is significantly smaller than the maximum total 25 weight loss of 3 lbs permissible under the Bulletin 129 test procedure. FIG. 4 shows a graph of the heat release rate in kW for the same mattress during the test. The maximum heat of approximately 15 kW is released 2.5 minutes into the test. 8 WO 2004/073799 PCT/US2004/004595 Again, this value is significantly smaller than the maximum rate of heat release of 100 kW permissible under the Bulletin 129 test procedure. FIG. 5 shows a graph of the total heat release in MJ during the same test. The total 5 heat release during the first 10 minutes into the test is 2.75 MJ, which is significantly smaller than the maximum heat release of 25 MJ permissible under the Bulletin 129 test procedure. The other recorded test data (e.g., temperature, carbon monoxide, smoke and toxic 10 gas released) were also all significantly smaller than the maximum values permitted under the Bulletin 129 test procedure. In summary, mattresses constructed with a fire barrier fabric placed between the quilt panel layer and the ticking that provides direct contact with the sleeper as well as 15 underneath the border panel have been shown to withstand ignition and combustion by open fire and exceed the requirements of the rigorous California Bureau of Home Furnishings Technical Bulletin 129 Flammability Test Procedure. While the invention has been disclosed in connection with the preferred embodiments shown and described in detail, various modifications and improvements thereon will 20 become readily apparent to those skilled in the art. For example, the fire barrier fabric can be applied directly behind the standard ticking material with an adhesive or stitched or quilted, either with standard threads or with fire-retardant threads. Additionally, the barrier material can be used to replace current materials such as a bottom cover for non-flip products, a top panel for foundations, and/or a complete, or 25 partial wrap-around cover for foundations. Additionally, in other embodiments, barrier materials can be used as the sole filling material beneath the fabric. Further, the systems and methods described herein may be employed with mattresses for conventional beds, day beds, futons and other bedding applications. The mattresses may be two-sided or one sided. In the case of one-sided mattresses, the sleeping 30 surface may comprise a an upper sleeping surface with a topper as described above 9 - 10 with reference to FIG. 2. The lower mattress surface, may be formed of a foam padding selected to minimize compaction, and may be a high density polyurethane foam. This provides a relatively rigid bottom layer, that provides a non-sleeping surface. Although 5 foam is often employed, other rigid materials may be used in place of the foam layer, such as plastic, wood, or other nonyielding rigid materials. To the extent such materials for the lower layer yield to pressure, such materials must have at least a high degree of recoverability once the pressure has been removed so that the materials are not compacted. Other means known in the art for assembling a mattress can also be used when 10 incorporating the fire barrier fabric. Accordingly, the spirit and scope of the present invention is to be limited only by the following claims.
Claims (13)
1. A fire-retardant mattress comprising a quilt panel having a mattress padding layer, an outer ticking layer forming a sleep surface, 5 a fire barrier fabric layer disposed between the mattress padding layer and the outer ticking layer, wherein the fire barrier fabric layer is quilted to the outer ticking layer to form a quilted sleeping surface of the mattress, a border panel disposed around a peripheral area of the mattress, said border panel including an outer ticking layer and a fire barrier fabric disposed between the 10 peripheral area of the mattress and the outer ticking layer, and a fire barrier fabric on a lower exterior surface of the mattress to provide a one sided mattress.
2. The mattress of claim 1, wherein the fire barrier fabric is in direct contact with the outer ticking layer. 15
3. The mattress of claim 1 or claim 2, wherein the fire barrier fabric is affixed to the outer ticking layer.
4. The mattress of any one of the preceding claims, wherein the fire barrier fabric is stitched to the outer ticking layer.
5. The mattress of any one of the preceding claims, wherein the fire barrier fabric is 20 bonded to a lower surface of the outer ticking layer.
6. The mattress of any one of the preceding claims, further comprising a frame and a mattress topper, adjacent to at least a top surface of the frame, the quilt panel being included in the mattress topper, and 25 the border panel being disposed around a peripheral area of the mattress frame.
7. The mattress of claim 6, wherein the upholstery topper layer provides a pillow top topper layer of the type placed over the uppers sleeping surface of the mattress.
8. A method of manufacturing a mattress having a fire-retardant quilt panel, comprising 30 providing a mattress frame, disposing a backing material on the mattress frame, - 12 providing a fire retardant quilt panel by placing a topper layer adjacent to at least a top surface of the frame, placing a fire barrier fabric on the upholstery topper layer, and placing an outer ticking over and in direct contact with the fire barrier fabric, 5 quilting the outer ticking layer, the fire barrier layer and the upholstery topper layer together, thereby forming the fire-retardant quilt panel as a composite structure with a quilted sleeping surface, placing a border panel around a peripheral area of the mattress, said border panel including an outer ticking layer and a fire barrier fabric disposed between the peripheral 10 area of the frame and the outer ticking layer, and applying the fire barrier fabric to a lower exterior surface of the mattress to provide a one-sided mattress.
9. The method according to claim 8, further comprising stitching the topper layer and the fire barrier fabric layer to a foam layer to form an 15 exterior quilted pattern on a top sleeping surface.
10. The method of claim 8 or claim 9, wherein placing the fire barrier fabric layer and the outer ticking includes stitching the fire barrier fabric and the outer ticking with thread to form a quilt pattern.
11. The method of any one of claims 8 to 10, further comprising 20 placing a fire barrier fabric layer on a upholstery topper lower layer.
12. A fire-retardant mattress comprising a quilt panel substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
13. A method of manufacturing a mattress having a fire-retardant quilt panel 25 substantially as herein described with reference to any one of the embodiments of the invention illustrated in the accompanying drawings and/or examples.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US10/366,996 US20040158928A1 (en) | 2003-02-14 | 2003-02-14 | Fire-retardant mattress |
US10/366,996 | 2003-02-14 | ||
PCT/US2004/004595 WO2004073799A2 (en) | 2003-02-14 | 2004-02-17 | Fire-retardant mattress |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2004212978A1 AU2004212978A1 (en) | 2004-09-02 |
AU2004212978B2 true AU2004212978B2 (en) | 2010-07-08 |
Family
ID=32849865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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AU2004212978A Ceased AU2004212978B2 (en) | 2003-02-14 | 2004-02-17 | Fire-retardant mattress |
Country Status (9)
Country | Link |
---|---|
US (1) | US20040158928A1 (en) |
EP (2) | EP1599114B1 (en) |
AT (1) | ATE454065T1 (en) |
AU (1) | AU2004212978B2 (en) |
CA (1) | CA2515839A1 (en) |
DE (1) | DE602004024962D1 (en) |
ES (1) | ES2339246T3 (en) |
NZ (1) | NZ541863A (en) |
WO (1) | WO2004073799A2 (en) |
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- 2003-02-14 US US10/366,996 patent/US20040158928A1/en not_active Abandoned
-
2004
- 2004-02-17 WO PCT/US2004/004595 patent/WO2004073799A2/en active Application Filing
- 2004-02-17 EP EP04711837A patent/EP1599114B1/en not_active Expired - Lifetime
- 2004-02-17 EP EP10000024A patent/EP2223633A1/en not_active Withdrawn
- 2004-02-17 AU AU2004212978A patent/AU2004212978B2/en not_active Ceased
- 2004-02-17 CA CA002515839A patent/CA2515839A1/en not_active Abandoned
- 2004-02-17 NZ NZ541863A patent/NZ541863A/en not_active IP Right Cessation
- 2004-02-17 AT AT04711837T patent/ATE454065T1/en not_active IP Right Cessation
- 2004-02-17 DE DE602004024962T patent/DE602004024962D1/en not_active Expired - Lifetime
- 2004-02-17 ES ES04711837T patent/ES2339246T3/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
ES2339246T3 (en) | 2010-05-18 |
WO2004073799A3 (en) | 2005-03-10 |
EP2223633A1 (en) | 2010-09-01 |
NZ541863A (en) | 2007-09-28 |
CA2515839A1 (en) | 2004-09-02 |
US20040158928A1 (en) | 2004-08-19 |
EP1599114B1 (en) | 2010-01-06 |
WO2004073799A2 (en) | 2004-09-02 |
DE602004024962D1 (en) | 2010-02-25 |
AU2004212978A1 (en) | 2004-09-02 |
ATE454065T1 (en) | 2010-01-15 |
EP1599114A4 (en) | 2007-04-04 |
EP1599114A2 (en) | 2005-11-30 |
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Legal Events
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FGA | Letters patent sealed or granted (standard patent) | ||
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |