Connect public, paid and private patent data with Google Patents Public Datasets

Cleaning article with indicator

Info

Publication number
WO2005009193A2
WO2005009193A2 PCT/US2004/023808 US2004023808W WO2005009193A2 WO 2005009193 A2 WO2005009193 A2 WO 2005009193A2 US 2004023808 W US2004023808 W US 2004023808W WO 2005009193 A2 WO2005009193 A2 WO 2005009193A2
Authority
WO
Grant status
Application
Patent type
Prior art keywords
cleaning
article
disposable
binder
span
Prior art date
Application number
PCT/US2004/023808
Other languages
French (fr)
Other versions
WO2005009193A3 (en )
Inventor
Mou Chung Ngai
Rekum Mireille Van
Nick Carter
Original Assignee
Polymer Group, Inc.
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16Cloths; Pads; Sponges

Abstract

The present invention is directed to a cleaning article for cleaning applications, and more specifically, to a cleaning article comprising an indicator, wherein the indicator fades during use to convey to the user that the cleaning article has met or exceeded its useful life span and needs to be replaced. In accordance with the present invention, the disposable cleaning article is comprised of a binder having a finite life span that acts as an indicator. Due to the continuous use of article the binder begins to fade and eventually is removed, indicating that usefulness of the disposable cleaning article has expired. The finite life span of the indicator is beneficial in a disposable cleaning article to act as a reminder to replace the expended cleaning article with a fresh article.

Description

CLEANING ARTICLE WITH INDICATOR TECHNICAL BACKGROUND [0001] The present invention generally relates to a cleaning article for cleaning applications, and more specifically, to a cleaning article comprising an indicator, wherein the indicator wears due to continuous use to convey to the user that the cleaning article has met its useful lifespan and needs to be replaced. BACKGROUND OF THE INVENTION [0002] The general use of woven and nonwoven fabrics as cleaning and cleansing articles is well known in the art. Various end-use articles are commercially available which utilize a combination of topical, performance enhancing additives and/or multi-layered laminate constructions. Enhanced versions of articles used in cleaning applications further incorporate an optional cleaning fluid, including but not limited to, soaps, lotions, disinfectants, polishing solutions, and glass cleaners. [0003] Disposable cleaning articles with indicators or sensors are also known. Usually such cleaning articles signal the user that the functional cleaning additive has been exhauster or that the cleaning article has come in contact with a substance that triggers the sensor. U.S. Patent No. 6,501 ,002, to Roe, et al., discloses a disposable surface cleaning article having a sensor which detects bodily waste contamination on a surface and which provides a signal indicating the presence of such contamination. U.S. Patent No. 4,678,704, to Fellows, discloses a cleaning article comprising an active agent along with an indicator dye that fades to indicate exhaustion of the active component. [0004] Often, disposable cleaning articles are still usable even after the active component has been depleted. Dry disposable cleaning articles may be utilized for several days as well before actually needing to be discarded. Without an indicator present on the cleaning article, which conveys that the cleaning article has met or exceeded its useful life span, it's easy to lose track of how long the disposable cleaning article has been utilized. [0005] A need remains for a disposable cleaning article that indicates when a disposable cleaning article has met or exceeded its useful life span. The present invention contemplates a cleaning article comprised of an indicator wears upon continuous use, notifying the user that it is time to replace the disposable cleaning article.

SUMMARY OF THE INVENTION [0006] The present invention is directed to a cleaning article for cleaning applications, and more specifically, to a cleaning article comprising an indicator, wherein the indicator fades during use to convey to the user that the cleaning article has met or exceeded its useful life span and needs to be replaced. [0007] In accordance with the present invention, the disposable cleaning article is comprised of a binder having a finite life span that acts as an indicator. Due to the continuous use of article the binder begins to fade and eventually is removed, indicating that usefulness of the disposable cleaning article has expired. The finite life span of the indicator is beneficial in a disposable cleaning article to act as a reminder to replace the expended cleaning article with a fresh article. [0008] In a first embodiment, a portion of the disposable cleaning article is permanently imprinted with a symbol, language, or other indicator that notifies the user to dispose of the cleaning article. The permanent print is covered or otherwise obscured by a finite life span binder, which will fade due to continuous use over a pre-determined length of time so as to reveal the permanent print beneath the finite life span binder, signaling the user to replace the cleaning article. [0009] In a second embodiment, a portion of the disposable cleaning article is permanently imprinted with an outline of a symbol or unspecified language that notifies the user to dispose of the cleaning article. As the finite life span binder begins to expire, the binder will eventually be removed due to use leaving behind the outline of the symbol or language, signaling the user to replace the cleaning article. [0010] In a third embodiment, the finite life span binder is applied to the cleaning article in a gradient or scale-like formation, whereby the finite life span binder slowly fades due to use along the scale. Optionally, the scale may be broken down into separate colors indicating when the cleaning article is fresh, slightly used, and needs replacing. [0011] The disposable cleaning article may be one or more layers of woven and/or nonwoven fabric, as well as film, and not meant to be a limiting factor of the present invention. Further, the disposable cleaning article may be coated and/or impregnated with an aqueous or non-aqueous cleaning composition; however the indicator of the disposable cleaning article functions independently from the amount of cleaning composition present in the disposable cleaning article. [0012] Other features and advantages of the present invention will become readily apparent from the following detailed description, the accompanying drawings, and the appended claims. DETAILED DESCRIPTION [0013] While the present invention is susceptible of embodiment in various forms, there is shown in the drawings and will hereinafter be described a presently preferred embodiment of the invention, with the understanding that the present disclosure is to be considered as an exemplification of the invention, and is not intended to limit the invention to the specific embodiment illustrated. [0014] The disposable cleaning article of the present invention may be one or more layers, wherein the layers may be selected from the group consisting of wovens, nonwovens, such as spunlace, spunbond, meltblown, air laid, wet laid, and films or a combination thereof. Manufacture of the cleaning article embodying the principles of the present invention may include providing the fibrous matrix, which can include the use of staple length fibers, continuous filaments, and the blends of fibers and/or filaments having the same or different composition. Fibers and/or filaments are selected from natural or synthetic composition, of homogeneous or mixed fiber length. Suitable natural fibers include, but are not limited to, cotton, wood pulp and viscose rayon. Synthetic fibers, which may be blended in whole or part, include thermoplastic and thermoset polymers. Thermoplastic polymers suitable for blending with dispersant thermoplastic resins include polyolefins, polyamides and polyesters. The thermoplastic polymers may be further selected from homopolymers; copolymers, conjugates and other derivatives including those thermoplastic polymers having incorporated melt additives or surface-active agents. Staple lengths are selected in the range of 0.25 inch to 10 inches, the range of 1 to 3 inches being preferred and the fiber denier selected in the range of 1 to 22, the range of 2.0 to 8 denier being preferred for general applications. The profile of the fiber and/or filament is not a limitation to the applicability of the present invention. [0015] Spunlace fabrics, otherwise known as hydroentangled fabrics, are known in the art and disclosed in U.S. Patent No. 3,485,706, to Evans, hereby incorporated by reference. The hydroentanglement of fibers or filaments of the fabric acts to provide the fabric with a useful level of integrity. Subsequent to entanglement, fabric integrity can be further enhanced by the application of binder compositions and/or by thermal stabilization of the entangled fibers or filaments. [0016] Spunlace fabrics may be made in accordance with the apparatus shown in FIGURE 1 , whereby the apparatus includes a foraminous forming surface in the form of belt 12 upon which the precursor web P is positioned for entangling or pre-entangling by manifold 14. [0017] The entangling apparatus of FIGURE 1 may optionally include an imaging and patterning drum 18 comprising a three-dimensional image transfer device for effecting imaging and patterning of the lightly entangled precursor web. The image transfer device includes a moveable imaging surface which moves relative to a plurality of entangling manifolds 22 which act in cooperation with three- dimensional elements defined by the imaging surface of the image transfer device to effect imaging and patterning of the fabric being formed. [0018] A spunbond process involves supplying a molten polymer, which is then extruded under pressure through a large number of orifices in a plate known as a spinneret or die. The resulting continuous filaments are quenched and drawn by any of a number of methods, such as slot draw systems, attenuator guns, or Godet rolls. The continuous filaments are collected as a loose web upon a moving foraminous surface, such as a wire mesh conveyor belt. When more than one spinneret is used in line for the purpose of forming a multi-layered fabric, the subsequent webs is collected upon the uppermost surface of the previously formed web. The web is then at least temporarily consolidated, usually by means involving heat and pressure, such as by thermal point bonding. Using this means, the web or layers of webs are passed between two hot metal rolls, one of which has an embossed pattern to impart and achieve the desired degree of point bonding, usually on the order of 10 to 40 percent of the overall surface area being so bonded. [0020] A related means to the spunbond process for forming a layer of a nonwoven fabric is the melt blown process. Again, a molten polymer is extruded under pressure through orifices in a spinneret or die. High velocity air impinges upon and entrains the filaments as they exit the die. The energy of this step is such that the formed filaments are greatly reduced in diameter and are fractured so that microfibers of finite length are produced. This differs from the spunbond process whereby the continuity of the filaments is preserved. The process to form either a single layer or a multiple-layer fabric is continuous, that is, the process steps are uninterrupted from extrusion of the filaments to form the first layer until the bonded web is wound into a roll. [0021] The present invention also contemplates the use of sub-denier, as well as nano-denier filaments within the cleaning article. Nano-denier continuous filaments preferably have a denier of less than or equal to 1000 nanometers, and preferably have a denier less than or equal to about 500 nanometers. [0022] Suitable nano-denier continuous filament layers can be formed by either direct spinning of nano-denier filaments or by formation of a multi-component filament that is divided into sub-denier filaments prior to deposition on a substrate layer. U.S. Patents No. 5,678,379 and No. 6,114,017, incorporated herein by reference, exemplify direct spinning processes practicable in support of the present invention. Multi-component filament spinning with integrated division into sub-denier filaments can be practiced in accordance with the teachings of U.S. Patents No. 5,225,018 and No. 5,783,503, incorporated herein by reference. [0023] One or more layers of woven or nonwoven fabric may be used in combination with a film layer in formation of the cleaning article. Various film layers may include, cast films, extruded films, and reticulated films. Extruded films utilizing the composition of the present invention can be formed in accordance with the following representative direct extrusion film process. Blending and dosing storage comprising at least one hopper loader for thermoplastic polymer chip and, optionally, one for pelletized additive in thermoplastic carrier resin, feed into variable speed augers. The variable speed augers transfer predetermined amounts of polymer chip and additive pellet into a mixing hopper. The mixing hopper contains a mixing propeller to further the homogeneity of the mixture. Basic volumetric systems such as that described are a minimum requirement for accurately blending the additive into the thermoplastic polymer. The polymer chip and additive pellet blend feeds into a multj-zone extruder. Upon mixing and extrusion from the multi-zone extruder, the polymer compound is conveyed via heated polymer piping through a screen changer, wherein breaker plates having different screen meshes are employed to retain solid or semi-molten polymer chips and other macroscopic debris. The mixed polymer is then fed into a melt pump, and then to a combining block. The combining block allows for multiple film layers to be extruded, the film layers being of either the same composition or fed from different systems as described above. The combining block is connected to an extrusion die, which is positioned in an overhead orientation such that molten film extrusion is deposited at a nip between a nip roll and a cast roll. [0024] In addition, breathable films, such as monolithic and microporous films, or reticulated films, can also be used within the cleaning article. Monolithic films, as taught in U.S. Patent No. 6,191 ,211 , and microporous films, as taught in U.S. Patent No. 6,264,864, both patents herein incorporated by reference, represent the mechanisms of forming such breathable barrier films. Reticulated films, such as those of U.S. Patents No. 4,381 ,326 and No. 4,329,309, are representative of macroporous films. [0025] In accordance with the present invention, the disposable cleaning article is comprised of a binder having a finite life span that acts as an indicator. Due to the continuous use of article the binder begins to fade and eventually is removed, indicating that usefulness of the disposable cleaning article has expired. The finite life span of the indicator is beneficial in a disposable cleaning article to act as a reminder to replace the expended cleaning article with a fresh article. One example of a binder with a finite lifespan is a cross-linked starch-latex co-polymer. [0026] In a first embodiment, a portion of the disposable cleaning article is permanently imprinted with a symbol, language, or other indicator that notifies the user to dispose of the cleaning article. The permanent print is covered or otherwise obscured by a finite life span binder, which will fade due to continuous use over a pre-determined length of time so as to reveal the permanent print beneath the finite life span binder, signaling the user to replace the cleaning article. [0027] In a second embodiment, a portion of the disposable cleaning article is permanently imprinted with an outline of a symbol or unspecified language that notifies the user to dispose of the cleaning article. As the finite life span binder begins to expire, the binder will eventually be removed due to use leaving behind the outline of the symbol or language, signaling the user to replace the cleaning article. [0028] In a third embodiment, the finite life span binder is applied to the cleaning article in a gradient or scale-like formation, whereby the finite life span binder slowly fades due to use along the scale. Optionally, the scale may be broken down into separate colors indicating when the cleaning article is fresh, slightly used, and needs replacing. [0029] The cleaning article embodying the principles of the present invention is especially suitable for home care cleaning or cleansing articles. The nonwoven article may be used in various home care applications, wherein the end use article may be a dry or wet hand held sheet, such as a wipe, a mitt formation, or a cleaning implement capable of retaining the article. The various end uses are suitable for cleaning household surfaces such as, kitchen and bathroom countertops, sinks, bathtubs, showers, appliances, and fixtures. [0030] It is within the purview of the present invention that the cleaning article may be utilized in a wet or dry state. An aqueous or non-aqueous cleaning composition may be topically applied or impregnated into the cleaning article. Cleansing compositions suitable for such end use applications include those that are described in U.S. Patents No. 6,103,683 to Romano, et al., No. 6,340,663 to Deleo, et al., No. 5,108,642 to Aszman, et al., and No. 6,534,472 Arvanitidou, et al., all of which are hereby incorporated by reference. Selected cleaning compositions may also include surfactants, such as alkylpolysaccharides, alkyl ethoxylates, alkyl sulfonates, and mixtures thereof; organic solvent, mono- or polycarboxylic acids, odor control agents, such as cyclodextrin, peroxides, such as benzoyl peroxide, hydrogen peroxide, and mixtures thereof, thickening polymers, aqueous solvent systems, suds suppressors, perfumes or fragrances, and detergent adjuvants, such as detergency builder, buffer, preservative, antibacterial agent, colorant, bleaching agents, chelants, enzymes, hydrotropes, and mixtures thereof. The aforementioned compositions preferably comprise from about 50% to about 500%, preferably from about 200% to about 400% by weight of the nonwoven cleaning article. [0031] The cleaning article embodying the principles of the present invention is also suitable for personal cleaning or cleansing articles. Nonlimiting examples of such applications include dry or wet facial wipes or sponges, body wipes or sponges, and baby wipes. Suitable methods for the application of various aqueous and non-aqueous compositions comprise aqueous/alcoholic impregnates, including flood coating, spray coating or metered dosing. Further, more specialized techniques, such as Meyer Rod, floating knife or doctor blade, which are typically used to impregnate cleansing solutions into absorbent sheets, may also be used. [0032] Cleansing compositions suitable for such personal end use applications include, but are not limited to exfollients, anti-acne agents, anticaking agents, antioxidants, binders, chemical additives, natural additives, colorants, cosmetic astringents, cosmetic biocides, drug astringents, emulsifiers, humectants, skin bleaching agents, skin-conditioning agents (emollient, humectants, miscellaneous, and occlusive), skin protectants, solvents, foam boosters, hydrotropes, solubilizing agents, suspending agents (nonsurfactant), sunscreen agents, ultraviolet light absorbers, and viscosity increasing agents (aqueous and nonaqueous). [0033] In addition to home care and personal care end uses, the nonwoven cleaning article may be used in industrial applications. For instance, the article may be useful in cleaning outdoor surfaces, such as lawn furniture, grills, and outdoor equipment Aqueous or non-aqueous functional industrial solvents include, oils, such as plant oils, animal oils, terpenoids, silicon oils, mineral oils, white mineral oils, paraffinic solvents, polybutylenes, polyisobutylenes, polyalphaolefins, and mixtures thereof, toluenes, sequestering agents, corrosion inhibitors, abrasives, petroleum distillates, and the combinations thereof. [0034] From the foregoing, numerous modifications and variations can be effected without departing from the true spirit and scope of the novel concept of the present invention. It is to be understood that no limitation with respect to the specific embodiment disclosed herein is intended or should be inferred. The disclosure is intended to cover, by the appended claims, all such modifications as fall within the scope of the claims.

Claims

WHAT IS CLAIMED IS: 1. A disposable cleaning article comprising an indicator that acts as a reminder to the user to replace the expended cleaning article with a fresh cleaning article, wherein said indicator comprises a finite life span binder. 2. A disposable cleaning article comprising an indicator that acts as a reminder to the user to replace the expended cleaning article with a fresh cleaning article, wherein a portion of said disposable cleaning article is permanently imprinted with a symbol or language and covered with a finite life span binder, which fades due to use so as to reveal the permanent print beneath the finite life span binder, signaling the user to replace the cleaning article. 3. A disposable cleaning article as in claim 2, wherein said disposable cleaning article is permanently imprinted with an outline of a symbol or language; said permanent outline filled-in with a finite life span binder, which fades due to use so as to reveal the permanent ink, signaling the user to replace the cleaning article. 4. A disposable cleaning article as in claim 2, wherein said a finite life span binder is applied said cleaning article in a gradient formation, which fades due to use so as to reveal the permanent ink, signaling the user to replace the cleaning article. 5. A disposable cleaning article as in claim 2, wherein said cleaning article is comprised of one or more three-dimensional images. 6. A disposable cleaning article as in claim 5, wherein said permanently imprinted symbol or language and said finite life span binder are imparted to said three-dimensional images.
PCT/US2004/023808 2003-07-24 2004-07-23 Cleaning article with indicator WO2005009193A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US48978703 true 2003-07-24 2003-07-24
US60/489,787 2003-07-24

Publications (2)

Publication Number Publication Date
WO2005009193A2 true true WO2005009193A2 (en) 2005-02-03
WO2005009193A3 true WO2005009193A3 (en) 2005-07-14

Family

ID=34102934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/023808 WO2005009193A3 (en) 2003-07-24 2004-07-23 Cleaning article with indicator

Country Status (2)

Country Link
US (1) US20050125926A1 (en)
WO (1) WO2005009193A3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005072594A1 (en) * 2004-01-26 2005-08-11 The Procter & Gamble Company Cleaning wipe with active graphic
US20050250405A1 (en) * 2004-05-05 2005-11-10 Bba Nonwovens Simpsonville, Inc. Nonwoven fabric for cleaning printing machines
US20070298085A1 (en) * 2006-06-27 2007-12-27 Lestage David J Skin Sanitizing Object
US20090110890A1 (en) * 2007-10-30 2009-04-30 3M Innovative Properties Company Color changing wear indicator
US8058875B2 (en) 2009-08-11 2011-11-15 Raytheon UTD, Inc. Detection of ground-laid wire using ultraviolet C-band radiation
US8441360B2 (en) * 2009-09-04 2013-05-14 Raytheon Company Search and rescue using ultraviolet radiation
US8253576B2 (en) * 2009-09-04 2012-08-28 Raytheon Company Search and rescue using ultraviolet radiation
US9394637B2 (en) 2012-12-13 2016-07-19 Jacob Holm & Sons Ag Method for production of a hydroentangled airlaid web and products obtained therefrom
WO2016191500A1 (en) * 2015-05-26 2016-12-01 Kimberly-Clark Worldwide, Inc. Wiper with use indicator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388331A (en) * 1994-01-28 1995-02-14 Doroodian-Shoja Siamak Wear indicator for a disposable razor
US5525397A (en) * 1993-12-27 1996-06-11 Kao Corporation Cleaning sheet comprising a network layer and at least one nonwoven layer of specific basis weight needled thereto
US5906834A (en) * 1992-06-15 1999-05-25 The Gillette Company Color changing matrix as wear indicator
US6501002B1 (en) * 1999-06-29 2002-12-31 The Proctor & Gamble Company Disposable surface wipe article having a waste contamination sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7310847B2 (en) * 2002-08-27 2007-12-25 Church & Dwight Co., Inc. Dual functional cleaning article

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5906834A (en) * 1992-06-15 1999-05-25 The Gillette Company Color changing matrix as wear indicator
US5525397A (en) * 1993-12-27 1996-06-11 Kao Corporation Cleaning sheet comprising a network layer and at least one nonwoven layer of specific basis weight needled thereto
US5388331A (en) * 1994-01-28 1995-02-14 Doroodian-Shoja Siamak Wear indicator for a disposable razor
US6501002B1 (en) * 1999-06-29 2002-12-31 The Proctor & Gamble Company Disposable surface wipe article having a waste contamination sensor

Also Published As

Publication number Publication date Type
WO2005009193A3 (en) 2005-07-14 application
US20050125926A1 (en) 2005-06-16 application

Similar Documents

Publication Publication Date Title
US6586529B2 (en) Water-dispersible polymers, a method of making same and items using same
US7144173B2 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US5560794A (en) Method for producing an apertured abrasive absorbent composite nonwoven web
US20040111817A1 (en) Disposable scrubbing product
US6663306B2 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US7096531B2 (en) Cleaning implement for cleaning a surface
US5874160A (en) Macrofiber nonwoven bundle
US6854911B2 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US6948873B2 (en) Cleaning composition, pad, wipe implement, and system and method of use thereof
US20030127108A1 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US5733825A (en) Undrawn tough durably melt-bondable macrodenier thermoplastic multicomponent filaments
US4833003A (en) Uniformly moist abrasive wipes
US20050215459A1 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US20060019571A1 (en) Absorbent personal care and/or cleansing product for cosmetic and/or dermatological applications comprising at least one absorbent sheet
US20030106568A1 (en) Cleaning sheet, system and apparatus
US7132377B2 (en) Disposable dish care and hard surface cleaning wipe
US5605749A (en) Nonwoven pad for applying active agents
US5114787A (en) Multi-layer nonwoven web composites and process
US5656361A (en) Multiple application meltblown nonwoven wet wipe and method
WO2000027271A2 (en) Cleaning composition, pad, wipe, implement, and system and method of use thereof
US20030114066A1 (en) Uniform distribution of absorbents in a thermoplastic web
US20020155772A1 (en) Multi-layer substrate for a premoistened wipe capable of controlled fluid release
US20050148264A1 (en) Bimodal pore size nonwoven web and wiper
US20030211802A1 (en) Three-dimensional coform nonwoven web
WO2011034523A1 (en) Coform nonwoven web formed from meltblown fibers including propylene/alpha-olefin

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase