US20050284836A1 - Container with snap-on closure - Google Patents

Container with snap-on closure Download PDF

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Publication number
US20050284836A1
US20050284836A1 US10/531,776 US53177605A US2005284836A1 US 20050284836 A1 US20050284836 A1 US 20050284836A1 US 53177605 A US53177605 A US 53177605A US 2005284836 A1 US2005284836 A1 US 2005284836A1
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US
United States
Prior art keywords
neck
closure
container
ridge
container 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.)
Abandoned
Application number
US10/531,776
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English (en)
Inventor
Franciscus Majoor
Fred Verhaar
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.)
Unilever Bestfoods North America
Original Assignee
Unilever Bestfoods North America
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=32103966&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20050284836(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unilever Bestfoods North America filed Critical Unilever Bestfoods North America
Assigned to UNILEVER BESTFOODS, NORTH AMERICA, DIVISION OF CONOPCO, INC. reassignment UNILEVER BESTFOODS, NORTH AMERICA, DIVISION OF CONOPCO, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAJOOR, FRANCISCUS AUGUSTINUS, VERHAAR, FRED
Publication of US20050284836A1 publication Critical patent/US20050284836A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46—Snap-on caps or cap-like covers
    • B65D41/48—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485—Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means

Definitions

  • the invention relates to a container suitable for the aseptic packing of microbiologically sensitive food products.
  • microbiologically sensitive food products will have a restricted shelf life when not properly preserved. Commonly such products are treated to eliminate the relevant microbial load using for instance pasteurisation or sterilisation. In order to prolong the shelf life of pasteurised or sterilised products, methods of hygienic or aseptic packaging the food products have been developed.
  • the packaging is tamper-proof or provides evidence of tampering as it may occur in a shop.
  • a heat-sealed foil shows that tampering has taken place, since the foil is disturbed/damaged when tampered with Screw caps may be provided with a ring or a break-lock that is torn off or broken when the container is opened for the first time.
  • EP 1122168 describes a method for moulding and filling aseptic containers. The method comprises the steps of sterilising preforms, heating the sterilised preforms to a temperature appropriate to orientation, moulding the heated preforms into containers by an orientation blow moulding process, filling the moulded containers with an aseptic liquid and hermetically closing the filled containers each with an aseptic closure.
  • the containers are capped with sterilised caps, which are not described in detail.
  • CH 595255 describes a sterile closable container with a snap-on cap, suitable for packing liquid or solid pharmaceuticals.
  • the container is tamper-proof, see column 2 , lines 25 - 31 and is reclosable.
  • the container is hermetically closed since tap 12 is forced into the neck 9 of the container and the upper rim 8 of the cylindrical upper part of the container is forced into the ring-shaped recess 13 .
  • a relatively high amount of material is used in the cap, further the cap is only suitable for closing small diameter necks.
  • the top of the neck of the bottle has to be very accurately dimensioned otherwise the bottle will not be aseptic.
  • the press-on force for snapping on the cap is also high.
  • the described bottle is preferably of glass, which will result in a container having a high weight.
  • FR 2744100 describes a snap-on closure, comprising a peripheral skirt with a ridge, intended for engagement with the inner surface of the neck wherein the free outer diameter of the ridge is slightly higher than the free inner diameter of the neck.
  • the closure shows tamper evidence, see the tear-off strip 4 . It may be opened using one hand after the tear-off strip has been removed. No use for aseptic packaging has been described in FR 2744100.
  • WO 99/61337 describes a plastic bottle comprising an extrusion blow-moulded body and an injection moulded neck and cap assembly, wherein the cap is fitted to the neck in order to provide a leak free resealable closure.
  • the closure is sealed with a foil ( 70 ).
  • This bottle has the same disadvantages as described above for other foil-sealed closures.
  • a separate step to connect the neck and cap assembly to the container body is needed.
  • U.S. Pat. No. 6,260,723 described a package for flowable media having a snap-on lid, providing an aseptic closure.
  • the aseptic closure is realised with an annular sealing lip, which is brought into sealing engagement with the inside surface of the edge of the package. Since the sealing area is the inside surface of the edge, the seal may easily be damaged when this inside surface is damaged. Damage may easily occur in the handling the package or the pre-forms (blanks), since the edge is always exposed, and therefore the sealing surface is not protected.
  • Another object of the invention is to provide a container with a closure that may reliably be reclosed after initial opening.
  • a further object of the invention is to provide a container with closure that is tamper-proof or shows tamper evidence.
  • Another object of the invention is to provide a container with closure that is light in weight.
  • Other objects are to provide a closure that has a low snap-on pressure, that is easily recyclable and that has a simple construction, and to provide a container in which the sealing surface is protected against damage.
  • Still another object of the invention is to provide a container with closure that may be reliably opened and closed after initial opening using one hand and remains connected to the container after opening.
  • the container comprises an injection blow-moulded container body ( 1 ) and neck ( 2 ) and a closure ( 3 ), characterised in that the closure ( 3 ) is a snap-on closure ( 3 ) characterized in that the snap-on closure ( 3 ) comprises a peripheral skirt ( 4 ) with a ridge ( 5 ), intended for engagement with the inner surface ( 6 ) of the neck ( 2 ) wherein the free outer diameter of the ridge ( 5 ) is slightly higher than the free inner diameter of the neck, characterised in that the snap-on closure ( 3 ) and the neck comprise means ( 7 , 8 ) for substantially fixing the ridge ( 5 ) in the axial direction of the neck, when the container is closed.
  • the invention further provides a plastic container comprising an injection blowmoulded container body ( 1 ) and neck ( 2 ) and a closure ( 3 ), wherein the closure ( 3 ) is a snap-on closure ( 3 ), filled with a sterilised or pasteurised microbiologically sensitive food product having a pH between 6 and 8.
  • the closure of the container according to the invention is a snap-on closure. This means that the closure according to the invention is to be pressed onto the neck of the container after the container has been filled to achieve an aseptic seal. This is opposed to sealing with foil, crown cork or turning on a screw cap as disclosed in the prior art. According to the invention a mechanically easy sealing of the container is achieved and the weight of the container and closure is low. Cap and closure are used herein as synonyms.
  • FIG. 1 Vertical section of the top part of a container and the snap-on closure according to the preferred embodiment
  • FIG. 2 Section of circumferential part of snap-on cap showing web ( 8 )
  • FIG. 3 Enlarged bottom plan view of the snap-on closure
  • the snap-on closure ( 3 ) comprises a peripheral skirt ( 4 ) with a ridge ( 5 ), intended for engagement with the inner surface ( 6 ) of the neck ( 2 ) wherein the free outer diameter of the ridge ( 5 ) is slightly higher than the free inner diameter of the neck ( 2 ), and the snap-on closure ( 3 ) and the neck ( 2 ) comprise means ( 7 , 8 , 9 , 10 ) for substantially fixing the ridge ( 5 ) in the axial direction of the neck ( 2 ), when the container is closed.
  • the length of the skirt ( 4 ) is such that, when the snap-on closure ( 3 ) is snapped onto the neck ( 2 ) and the ridge ( 5 ) is in engagement with the inner surface ( 6 ) of the neck ( 2 ), the ridge ( 5 ) is at a depth of 0.2 D or more, more preferably 0.3-0.5 D, wherein D is the inside diameter of the neck ( 2 ) and the depth is measured from the top rim of the neck to the middle of the ridge ( 5 ).
  • These webs ( 8 ) have such a height that the bottom touches the top rim of the neck when the snap-on closure ( 3 ) is snapped onto the neck ( 2 ) of the container.
  • a protrusion ( 7 ) of the neck ( 2 ) lies against an inclined part ( 10 ) of the bottom part of the closure ( 3 ), which prohibits a downward movement of the ridge ( 5 ), whereas a web ( 8 ) lies against the upper ridge ( 9 ) of the neck ( 2 ), which results in a fixation of the ridge ( 5 ) in upward direction.
  • Closing a container filled with sterile product in the way described above provides a commercially aseptic packed product.
  • the tolerance of movement of the ridge ( 5 ) in the axial direction of the neck, when the container is closed, is smaller than the height (H in FIG. 5 ) of the contact surface between the ridge ( 5 ) and the inner surface ( 6 ) of the neck ( 2 ).
  • the neck ( 2 ) has an inner surface ( 6 ), having no grooves having a width of 0.5 ⁇ m or larger. These measures will further reduce the risk of microbiological contamination.
  • the closure according to the invention is made from plastic material that is injection moulded.
  • the container is made preferably in two steps. In the first step a preform is produced by injection moulding, this assures a high accuracy in the neck of the container.
  • the preform is designed as such that the seal area cannot be touched by other preforms during handling and transport from preform injection to Blow moulding.
  • the container body is shaped by blow-moulding. The seal area inside of the preform neck will not be touched by any object to avoid scratches.
  • the seal area is the part of the inner surface ( 6 ) of the neck ( 2 ) that is in contact with the ridge ( 5 ), when the container is sealed.
  • the Blowing, Sterilisation, Filling and Capping operation are to be executed preferably in one operation avoiding any mechanical contact between the inner surface of the neck and the equipment.
  • the above-described process ensures an accurate smooth inner surface without scratches from handling.
  • the Shore D hardness of the material of the ridge ( 5 ) is lower than the Shore D hardness of the material of the neck ( 2 ). This causes that the material of the ridge may easily fill any grooves in or surface roughness of the inner surface of the neck, resulting in an improved sealing of the container.
  • the Shore D hardness of the material of the ridge ( 5 ) is preferably 65 or less, more preferably 60 or less and the Shore D hardness of the material of the neck ( 2 ) is preferably 70 or more, more preferably 80 or more.
  • the Shore D hardness may be measured with an apparatus known as a Durometer and consequently is also known as ‘Durometer hardness’.
  • the hardness value is determined by the penetration of the Durometer indenter foot into the sample. Because of the resilience of rubbers and plastics, the indentation reading my change over time—so the indentation time is sometimes reported along with the hardness number.
  • the ASTM test method designation is ASTM D2240 00, which is used herein. Related methods include ISO 7619 and ISO 868; DIN 53505; and JIS K 6301, which was discontinued and superseded by JIS K 6253.
  • the material of the ridge is most relevant for the sealing and it may be different from rest of the material of the snap-on closure, it is preferred that the whole snap-on closure, including the ridge, is made of the same material, for reasons of simplicity and recycleability.
  • Suitable materials for the container body are resilient plastic materials that may be injection-blow-moulded, such as Polyethylene terepthalate (PET), polycarbonate (PC) or PEN, or mixtures thereof.
  • Suitable materials for the snap-on closure are plastic materials that may be injection moulded such as various types of polyethylene, for example linear-low density polyethylene (LLDPE).
  • LLDPE linear-low density polyethylene
  • the snap-on closure has a hinge ( 11 ).
  • the hinge ( 11 ) is a click-hinge ( 11 ), which is even more comfortable in use, since it fixes the closure in two positions, opened and closed.
  • the snap-on closure comprises a circumferential tear-off strip ( 12 ).
  • This tear-off strip provides evidence of tampering.
  • the tear-off strip may preferably be supplied with a grip ( 13 ).
  • the container is a bottle, but the invention is not limited to bottles. Other containers such as jars, goblet, etc. may also benefit from the invention.
  • the invention is only related to food products, which are not required to be packed under pressure, so that the packing of e.g. carbonated beverages is excluded.
  • the container and closure After the container and closure have been prepared, they are preferably sterilized, e.g. by spraying with desinfectant liquid (for example a 4.5 wt % Oxonia, Henkel Ecolab Germany) and subsequent rinsing with sterilised water. Any other sterilising method may also be used.
  • desinfectant liquid for example a 4.5 wt % Oxonia, Henkel Ecolab Germany
  • sterilised water any other sterilising method may also be used.
  • the container After sterilisation, the container is filled with a food product and is sealed by pressing on the sterilised snap-on closure.
  • the invention further relates to a container as described herein filled with a sterilised or pasteurised microbiologically sensitive food product.
  • the container according to the invention is especially suitable for microbiologically sensitive food product has a pH between 6 and 8.
  • the microbiologically sensitive food product may have any state or appearance: it may be a liquid, a pourable material, a spoonable or spreadable material or solid paste or particles.
  • the food product is a liquid, squeezable or pourable product.
  • Containers with snap-on closure having a volume of 250 ml according to FIGS. 1-3 were made.
  • the material of the container was polyethylene terephtalate (PET) suitable for biaxial blown-moulding, having a Shore D hardness of 83.
  • the material of the snap-on closure was linear low-density polyethylene (LLDPE) having a Shore D hardness of 53.
  • Preforms were prepared by injection-blowmoulding. Snap-on caps were injection moulded.
  • Preforms were fed into a Husky blow-moulding machine and the preforms were blow-moulded whereby the neck of the preforms was only held on the outside.
  • the resulting bottles and the snap-on caps were sterilised by means of Gamma-irradiation. After desinfection they were kept in a sterile environment until closure of the bottles with the snap-on caps.
  • the bottles were filled with sterilised cream and were closed with the snap-on caps in a high hygiene environment.
  • a sleeve oriented polystyrene foil
  • the aseptic containers thus prepared were tested as follows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
US10/531,776 2002-10-21 2003-09-25 Container with snap-on closure Abandoned US20050284836A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02079347 2002-10-21
EP02079347.7 2002-10-21
PCT/EP2003/011063 WO2004035410A1 (en) 2002-10-21 2003-09-25 Container with snap-on closure

Publications (1)

Publication Number Publication Date
US20050284836A1 true US20050284836A1 (en) 2005-12-29

Family

ID=32103966

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/531,776 Abandoned US20050284836A1 (en) 2002-10-21 2003-09-25 Container with snap-on closure

Country Status (17)

Country Link
US (1) US20050284836A1 (pt)
EP (1) EP1554189B1 (pt)
JP (1) JP2006503760A (pt)
CN (1) CN100404384C (pt)
AT (1) ATE334069T1 (pt)
AU (1) AU2003276062B2 (pt)
BR (1) BR0314500A (pt)
CA (1) CA2501382A1 (pt)
DE (1) DE60307125T2 (pt)
DK (1) DK1554189T3 (pt)
ES (1) ES2268485T3 (pt)
MX (1) MXPA05004129A (pt)
NZ (1) NZ538995A (pt)
PL (1) PL200904B1 (pt)
RU (1) RU2332338C2 (pt)
WO (1) WO2004035410A1 (pt)
ZA (1) ZA200502608B (pt)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100166923A1 (en) * 2007-06-28 2010-07-01 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products, and packaging material and package obtained thereby
US20110056951A1 (en) * 2009-09-09 2011-03-10 Roche Diagnostics Operations, Inc. Storage containers for test elements
US20140183200A1 (en) * 2013-03-14 2014-07-03 Taiwell Tech. Co.,Ltd. Mildew-resistant packaging
US9611079B2 (en) 2015-03-05 2017-04-04 Aptargroup, Inc. Fitment and overcap therefor
WO2022006623A1 (en) * 2020-07-08 2022-01-13 Japeloco Pty Ltd. Closures and vessels with closures

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0912064D0 (en) * 2009-07-10 2009-08-19 Reckitt & Colman Overseas A bottle with a secure cap
ES1071297Y (es) * 2009-10-01 2010-05-06 Goiplastik S L Tapon mejorado
RU2508230C1 (ru) * 2012-08-20 2014-02-27 Общество с ограниченной ответственностью "ПластикС" Контейнер
JP7053144B2 (ja) * 2016-12-22 2022-04-12 プレミアムウォーター株式会社 キャップ付き容器及びキャップ付き容器の製造方法
US11926463B2 (en) * 2017-10-09 2024-03-12 Microban Products Company Antimicrobial bottle with antimicrobial seal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544338A (en) * 1968-01-08 1970-12-01 Phillips Petroleum Co Food container with a tamper proof snap on closure
US4248030A (en) * 1979-05-04 1981-02-03 Owens-Illinois, Inc. Method for assembling plastic sleeve preforms and containers
US4693392A (en) * 1986-09-15 1987-09-15 Contreras Sr Joseph P Hinge, and boss assembly for closure members
US4919286A (en) * 1988-05-27 1990-04-24 Robert Linkletter Assoc. Hinged closure and container
US5499736A (en) * 1993-12-28 1996-03-19 Kraft Foods, Inc. Reclosable, removable cap for reusable shaker dispenser bottle
US6041953A (en) * 1995-04-05 2000-03-28 Goodall; Donald Terry Containers and closures therefor
US6260723B1 (en) * 1996-11-02 2001-07-17 Tetra-Laval Holdings & Finance Package for flowable media having a snap lid and preform for making same

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FI753494A (pt) * 1974-12-16 1976-06-17 Behringwerke Ag
US4699301A (en) * 1985-10-25 1987-10-13 Blake William S Two piece dispensing closure
DE69213211T2 (de) * 1992-04-10 1997-01-23 Duma Ab Behälterverschluss mit Abreissband
FR2744100B1 (fr) * 1996-01-26 1998-03-13 Astra Plastique Bouchon destine a s'encliqueter sur le col d'un recipient
GB2337740B (en) 1998-05-26 2000-11-15 Spreckelsen Mcgeough Ltd Fluid packaging
JP2001212874A (ja) 2000-02-02 2001-08-07 Shikoku Kakoki Co Ltd 無菌容器成形充填方法
FR2820110B1 (fr) * 2001-01-29 2003-08-15 Valois Sa Ensemble et procede de fabrication, de montage et de remplissage d'un dispositif de distribution de produit fluide

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544338A (en) * 1968-01-08 1970-12-01 Phillips Petroleum Co Food container with a tamper proof snap on closure
US4248030A (en) * 1979-05-04 1981-02-03 Owens-Illinois, Inc. Method for assembling plastic sleeve preforms and containers
US4693392A (en) * 1986-09-15 1987-09-15 Contreras Sr Joseph P Hinge, and boss assembly for closure members
US4919286A (en) * 1988-05-27 1990-04-24 Robert Linkletter Assoc. Hinged closure and container
US5499736A (en) * 1993-12-28 1996-03-19 Kraft Foods, Inc. Reclosable, removable cap for reusable shaker dispenser bottle
US6041953A (en) * 1995-04-05 2000-03-28 Goodall; Donald Terry Containers and closures therefor
US6260723B1 (en) * 1996-11-02 2001-07-17 Tetra-Laval Holdings & Finance Package for flowable media having a snap lid and preform for making same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100166923A1 (en) * 2007-06-28 2010-07-01 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products, and packaging material and package obtained thereby
US8454872B2 (en) 2007-06-28 2013-06-04 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products
US9868587B2 (en) 2007-06-28 2018-01-16 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products, and packaging material and package obtained thereby
US20110056951A1 (en) * 2009-09-09 2011-03-10 Roche Diagnostics Operations, Inc. Storage containers for test elements
US8622231B2 (en) * 2009-09-09 2014-01-07 Roche Diagnostics Operations, Inc. Storage containers for test elements
US20140183200A1 (en) * 2013-03-14 2014-07-03 Taiwell Tech. Co.,Ltd. Mildew-resistant packaging
US9611079B2 (en) 2015-03-05 2017-04-04 Aptargroup, Inc. Fitment and overcap therefor
US10293988B2 (en) 2015-03-05 2019-05-21 Aptargroup, Inc. Fitment and overcap therefor
WO2022006623A1 (en) * 2020-07-08 2022-01-13 Japeloco Pty Ltd. Closures and vessels with closures
US11591141B2 (en) 2020-07-08 2023-02-28 Veraseal Pty Limited Closures and vessels with closures

Also Published As

Publication number Publication date
MXPA05004129A (es) 2005-06-22
WO2004035410A1 (en) 2004-04-29
AU2003276062A1 (en) 2004-05-04
ZA200502608B (en) 2006-06-28
EP1554189A1 (en) 2005-07-20
PL375095A1 (en) 2005-11-14
PL200904B1 (pl) 2009-02-27
DE60307125T2 (de) 2007-02-15
NZ538995A (en) 2006-10-27
CA2501382A1 (en) 2004-04-29
AU2003276062B2 (en) 2007-02-08
CN100404384C (zh) 2008-07-23
RU2005115496A (ru) 2006-01-20
DK1554189T3 (da) 2006-11-06
ES2268485T3 (es) 2007-03-16
JP2006503760A (ja) 2006-02-02
DE60307125D1 (de) 2006-09-07
EP1554189B1 (en) 2006-07-26
BR0314500A (pt) 2005-07-26
ATE334069T1 (de) 2006-08-15
RU2332338C2 (ru) 2008-08-27
CN1688492A (zh) 2005-10-26

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AS Assignment

Owner name: UNILEVER BESTFOODS, NORTH AMERICA, DIVISION OF CON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAJOOR, FRANCISCUS AUGUSTINUS;VERHAAR, FRED;REEL/FRAME:017018/0475

Effective date: 20050322

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION