US20130043248A1 - Beverage container end closure with easy opening features for a pull tab - Google Patents

Beverage container end closure with easy opening features for a pull tab Download PDF

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Publication number
US20130043248A1
US20130043248A1 US13/588,843 US201213588843A US2013043248A1 US 20130043248 A1 US20130043248 A1 US 20130043248A1 US 201213588843 A US201213588843 A US 201213588843A US 2013043248 A1 US2013043248 A1 US 2013043248A1
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US
United States
Prior art keywords
fingerwell
end closure
approximately
angle
central panel
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
US13/588,843
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English (en)
Inventor
Dennis Keith Frank
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.)
Ball Corp
Original Assignee
Ball Corp
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 Ball Corp filed Critical Ball Corp
Priority to US13/588,843 priority Critical patent/US20130043248A1/en
Assigned to BALL CORPORATION reassignment BALL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRANK, DENNIS KEITH
Publication of US20130043248A1 publication Critical patent/US20130043248A1/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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/001—Action for opening container
    • B65D2517/0014—Action for opening container pivot tab and push-down tear panel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0059—General cross-sectional shape of container end panel
    • B65D2517/0061—U-shaped
    • B65D2517/0062—U-shaped and provided with an additional U-shaped peripheral channel
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0074—Local recess in container end panel
    • B65D2517/0079—Local recess in container end panel located beneath tab hand grip to facilitate initial lifting

Definitions

  • the present invention relates generally to beverage container end closures. More specifically, the present invention relates to beverage container end closures with pull tabs and easy opening features including a deep fingerwell positioned proximate to the pull tab.
  • SOTs Food and beverage containers with pull tabs or stay-on-tabs
  • Various SOTs and related features are disclosed in, by way of example, U.S. Pat. No. 7,926,675 to Rieck et al., the entire disclosure of which is hereby incorporated by reference in its entirety.
  • Known devices generally position a distal or “tail” end of a pull tab in close proximity to the panel of the end closure to allow stacking of the end closures prior to and after filling of the beverage container.
  • Such an arrangement particularly where can contents are placed under pressure, pose various complications and challenges with operating the tab and opening a portion of the panel. Such complications include, but are not limited to difficulty in engaging or grasping the tab and risks of damage or injury to a user's finger(s) or fingernail(s).
  • the present invention contemplates a novel system, device, and methods for providing a food and beverage container end closure with easy opening features for a pull tab disposed on the end closure, and more specifically a deep fingerwell to permit the access of a user's finger below the lift ring of a pull tab.
  • End closures of the present disclosure provide, for example, the structural features and benefits, stacking abilities, and ease of manufacture of various known devices, and further provide a deep fingerwell recess allowing for ease of access to the operative (i.e. bottom) side of tab, thereby increasing user-friendliness of the device.
  • an end closure is provided with a SOT and a dimple shaped fingerwell in the panel.
  • the fingerwell is preferably disposed generally proximal to a distal or user end of the tab.
  • the fingerwell is disposed such that at least a portion of the tab extends over at least a portion of an area defined by the fingerwell and facilitates user-access to an underside of the tab for lifting.
  • an end closure with a fingerwell is provided, the fingerwell having a generally rounded shape when viewed from a top plan view.
  • a fingerwell is provided having a depth of between approximately 0.010′′ and approximately 0.060′′ as measured from the panel.
  • a fingerwell is provided having a depth of between approximately 0.020′′ and approximately 0.050′′ as measured from the panel.
  • a fingerwell is provided having a depth of between approximately 0.025′′ and approximately 0.040′′ as measured from the panel.
  • an end closure with a deep fingerwell and improved geometry is provided to allow access to a pull tab and provide for increased normal force to be imparted upon the pull tab.
  • the present invention contemplates the provision of a fingerwell preferably sized to allow for user access to a pull tab and allow for greater normal force to be applied to the pull tab when compared with known devices. It is known, for example, that existing pull tabs are not only difficult to access but further result in a significant amount of the force being applied to the pull tab in a direction or vector parallel with an opening area. Such a force places stress upon a rivet and provides reduced ability to score or open an opening area. Fingerwells of various embodiments of the present invention allow for a user to provide an initial force upon the tab with an increased degree of normal force, further facilitating opening operations.
  • the improved end closure allows the stacking of multiple end closures and filled food or beverage containers.
  • a metallic container end closure adapted for interconnection to a neck of a metal beverage container.
  • the end closure comprises: a peripheral curl adapted for interconnection to the neck of the container; a chuck wall interconnected to the peripheral curl and extending downwardly therefrom; a countersink interconnected to a lower end of the chuck wall; an inner panel wall interconnected to the countersink; a central panel interconnected to an upper end of the inner panel wall; the central panel comprising a debossed area with a substantially tear drop shape, the debossed area disposed at a lower height than the central panel and wherein the debossed area comprises a rivet for securing a pull tab with a forward end and a tail end, the forward end positioned over selective opening area defined by a score line; and the debossed area comprising a fingerwell portion extending below a substantially horizontal plane defined by the debossed area, wherein the fingerwell comprises a substantially planar lower portion and opposing side walls, the first opposing sidewall
  • FIG. 1 is a cross-sectional side elevation view of a portion of an end closure according to one embodiment of the present disclosure
  • FIG. 2 is a top plan view of a portion of an end closure according to one embodiment of the present disclosure
  • FIG. 3 is a top view of a fingerwell feature according to one embodiment of the present disclosure.
  • FIG. 4 is a front cross-sectional view of a portion of an end closure according to one embodiment of the present disclosure
  • FIG. 5 is a side cross-sectional view of a portion of an end closure according to one embodiment of the present disclosure
  • FIG. 6 is a perspective view of a forming tool according to one embodiment of the present disclosure.
  • FIG. 7 is a perspective view of a forming tool according to one embodiment of the present disclosure.
  • FIG. 8 is a top plan view of an end closure according to one embodiment of the present disclosure.
  • FIG. 9 is a side cross-sectional view of an end closure according to one embodiment of the present disclosure.
  • FIGS. 1-9 a beverage container end closure and methods and devices for forming the same according to various embodiments of the present invention are shown. It should be understood that the drawings are not necessarily to scale. In certain instances, details that are not necessary for an understanding of the invention or that render other details difficult to perceive may have been omitted from these drawings. It should be understood, of course, that the invention is not limited to the particular embodiments illustrated in the drawings.
  • FIG. 1 depicts a portion of an end closure 2 for a food or beverage container in cross-sectional side view.
  • a tab 4 is provided for selectively opening an opening area which is defined by a score line (not shown).
  • the tab 4 may be secured to the end closure 2 through a variety of known devices and means including, for example, a rivet.
  • at least a portion of the tab pull ring 4 extends over a fingerwell 10 , the fingerwell 10 comprising a defined area which is recessed below a central panel 18 .
  • the panel 18 extends into a countersink 12 , corresponding chuck wall 15 , and peripheral curl 14 for attaching the end closure to a container (not shown).
  • the fingerwell 10 is sized and positioned such that a portion of the tab 4 extends over a portion of the area defined by the fingerwell 10 . As shown, a portion of the area defined by the fingerwell 10 remains unobstructed to allow a user's finger, for example, to access the distal end of the tab 4 and lift the tab.
  • a fingerwell 10 of the present invention comprises generally rounded or contoured features, such rounded edges or contours on the upper or public side of the end closure so as to reduce the risk of laceration to a user or other items, as well facilitate access to an underside of a tab.
  • the fingerwell 10 has a geometry adapted to receive a specific type of tool such as a church key, bottle opener, coin, etc.
  • FIG. 2 depicts a portion of an end closure 2 for a food or beverage container in top plan view.
  • the end closure comprises a fingerwell 10 , the fingerwell 10 comprising a substantially ovoid recession in the panel.
  • fingerwells of the present invention may comprise any number of shapes.
  • a fingerwell 10 is provided that generally comprises the cross-sectional shape of a human finger (i.e. a “D” shape).
  • the end closure comprises a debossed central portion 16 containing the tab 4 and opening area of the closure.
  • the central portion 18 of the panel terminates in a countersink 12 , which is further connected to an outside or peripheral curl 14 by a chuck wall 15 .
  • a method comprising the steps of: providing a blank end panel, forming a rivet at a substantially central location on the end panel, coining the panel, providing one or more scores for an opening area, providing in a single step: a debossed panel and a fingerwell portion; and securing a pull tab.
  • FIG. 3 is a top plan view of a fingerwell feature 10 of the present disclosure.
  • the fingerwell 10 comprises a substantially ovoid shape comprising more than one radius of curvature.
  • the fingerwell 10 comprises a lowermost portion 10 a and a transition portion 10 b .
  • the transition portion 10 b is angled or sloped at one or more angles and interconnects the lowermost portion 10 a to the panel 18 .
  • transition portion 10 b comprises a first portion 6 and second portion 8 , first 6 and second 8 portion comprising different slopes or angles adjoining the lowermost portion 10 a to the panel, as will be described in additional detail herein.
  • various radii of curvature are provided.
  • a first radius of curvature R 1 comprises a radius of between approximately 0.25 and 0.50 inches. More preferably, R 1 comprises a radius of between approximately 0.30 and 0.35 inches. In a preferred embodiment, R 1 comprises a radius of 0.3421 inches.
  • a second radius of curvature R 2 comprises a radius of between approximately 0.50 and 0.60 inches. More preferably, R 2 comprises a radius of between approximately 0.55 and 0.59 inches. In a preferred embodiment, R 2 comprises a radius of 0.5825 inches.
  • a third radius of curvature R 3 comprises a radius of between approximately 0.030 and 0.050 inches. More preferably, R 3 comprises a radius of between approximately 0.035 and 0.045 inches.
  • R 3 comprises a radius of 0.0400 inches.
  • a fourth radius of curvature R 4 comprises a radius of between approximately 0.09 and 0.12 inches. More preferably, R 4 comprises a radius of between approximately 0.10 and 0.115 inches. In a preferred embodiment, R 4 comprises a radius of 0.1125 inches.
  • R 1 of FIG. 3 designates a radius of curvature of a debossed portion provided on the panel (see FIG. 2 ). As shown, the debossed portion of the panel extends slightly beyond the fingerwell portion 10 at one portion of the fingerwell in the depicted embodiment.
  • the central panel (not shown in FIG. 3 ) comprises a greater radius.
  • FIG. 4 is a front cross-sectional view of a portion of an end closure of the present invention. Specifically, a cross-sectional view through the widest portion of a fingerwell 10 is provided. As shown, the fingerwell comprises a depth of approximately 0.0579 inches from the panel. The fingerwell extends upwardly from the centerline in a generally symmetric fashion.
  • FIG. 5 is a cross-sectional side view of a portion of an end closure of the present disclosure.
  • a fingerwell 10 comprises a first depth below a corresponding panel portion for securing a tab (not shown) of approximately 0.03576 inches and a second depth below an additional portion of the panel adjacent a countersink of approximately 0.05924 inches.
  • the fingerwell portion comprises a first surface 6 extending from the panel at an angle of approximately 23 degrees and a second surface 8 extending from the panel at an angle of approximately 30.5 degrees.
  • the first surface may be oriented at an angle between about 15-30 degrees, while the second surface may be oriented at an angle between about 25-35 degrees.
  • fingerwells of the present invention may, but need not be, symmetrical features.
  • Embodiments of the present disclosure contemplate various depths of fingerwells, both with respect to a debossed portion and a central panel portion.
  • a fingerwell having a depth i.e. a vertical distance between a lowermost portion of the fingerwell and a debossed portion
  • One preferred embodiments of the present disclosure provides a fingerwell features with a depth of approximately 0.03576 inches.
  • FIG. 6 is a perspective view of a tool 30 for forming an end closure with a deep fingerwell in accordance with the present disclosure.
  • Devices for forming an end closure comprising, for example, a debossed central panel and a recessed fingerwell with easy-opening and/or safety as discussed herein are provided.
  • FIG. 6 depicts an insert or tool 30 for contacting and forming an upper or public side of a panel with a fingerwell feature.
  • Protrusion 32 is provided for forming a fingerwell, the resulting fingerwell generally comprising the inverse shape as protrusion 32 .
  • Additional features and voids are provided corresponding to additional panel features including, for example, a tab rotation element 34 , a rivet or rivet area 36 and an opening area 38 .
  • a fingerwell portion may be formed on an end panel before, during, or after formation of features such as debossed features, rivets, score lines, opening areas, etc.
  • a forming tool 30 is provided to form a fingerwell with a protrusion 32 , while recessed portions 34 , 36 , 38 of the tool 30 accommodate various preformed features of the panel.
  • FIG. 7 is a perspective view of a panel support tool 40 for forming a panel in accordance with the present disclosure.
  • tool 40 is provided in combination with additional forming tool 30 .
  • forming tool 30 is provided above a panel to be formed or modified and support tool 40 is provided below the panel to be formed or modified.
  • Support tool 40 comprises receiving area 42 for receiving a portion of the panel and forming a fingerwell in combination with corresponding protrusion 32 (see FIG. 6 ).
  • Additional features or voids are provided for accommodating additional panel features, such as a rivet void 46 , a tab rotation element void 44 and an opening area void 48 .
  • FIG. 8 is a top view of one embodiment of an end closure 2 comprising a fingerwell 10 , a lift tab 4 , a peripheral curl 14 , a central panel 18 , and a debossed area 16 .
  • FIG. 8 depicts a preferred embodiment of the arrangement of these various features with respect to one another. It will be expressly recognized, however, that variations of the embodiment shown in FIG. 8 , particularly with respect to dimensions and proportions, are expressly contemplated as within the scope and spirit of the present disclosure.
  • FIG. 9 is a side cross-sectional view of one embodiment of an end closure 2 comprising a fingerwell 10 , a peripheral curl 14 , a central panel 18 , a debossed area 16 , a first 6 portion and a second 8 portion.
  • the fingerwell portion comprises a surface of a first 6 portion extending from the fingerwell at an angle of between approximately 10 degrees and 60 degrees. More preferably, the fingerwell portion comprises a surface of a first 6 portion extending from the fingerwell at an angle of between approximately 25 degrees and 45 degrees.
  • the depth of fingerwell 10 , with respect to debossed area 16 is between approximately 0.015 inches and approximately 0.060 inches. More preferably, the depth of fingerwell 10 , with respect to debossed area 16 , is between approximately 0.030 inches and approximately 0.045 inches.
  • An opening operation of an end closure 2 is provided by the present disclosure.
  • a pull tab 4 is initially provided in a closed state wherein the fingerwell 10 allows access to at least a portion of the tab 4 such that a greater lifting or normal force may be applied to the pull ring of the tab 4 . Accordingly, opening operations are facilitated by creating a greater corresponding downward normal force at the nose of the tab 4 to sever a score line and/or force open an opening area.
  • embodiments of the present disclosure provide distinct advantages over known devices which require or result in a substantial amount of an initial force applied to a pull tab to be directed parallel to the panel.
  • the present invention provides for a greater application of perpendicular force to a pull tab when an opening area is in a completely closed state, as well as throughout opening operations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Cartons (AREA)
US13/588,843 2011-08-19 2012-08-17 Beverage container end closure with easy opening features for a pull tab Abandoned US20130043248A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/588,843 US20130043248A1 (en) 2011-08-19 2012-08-17 Beverage container end closure with easy opening features for a pull tab

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161525574P 2011-08-19 2011-08-19
US13/588,843 US20130043248A1 (en) 2011-08-19 2012-08-17 Beverage container end closure with easy opening features for a pull tab

Publications (1)

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US20130043248A1 true US20130043248A1 (en) 2013-02-21

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US13/588,843 Abandoned US20130043248A1 (en) 2011-08-19 2012-08-17 Beverage container end closure with easy opening features for a pull tab

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US (1) US20130043248A1 (pt)
BR (1) BR112013020843A2 (pt)
MX (1) MX337758B (pt)
WO (1) WO2013028549A1 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033174B2 (en) 2013-03-15 2015-05-19 Ball Corporation Easy access opening tab for a container end closure
USD999631S1 (en) * 2021-07-23 2023-09-26 Stolle Machinery Company, Llc Ring pull tab
USD1019312S1 (en) * 2022-09-28 2024-03-26 Shenzhen Yingxiang Technology Co., Ltd. Bottle opener

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257529A (en) * 1979-04-12 1981-03-24 National Steel Corporation Easy-open retained tab structure for beverage can
US20070108209A1 (en) * 2002-06-11 2007-05-17 Jeong-Wook Jeon Easily openable can lid
US20070131693A1 (en) * 2005-12-07 2007-06-14 Daiwa Can Company Easy open can lid
US20080099480A1 (en) * 2006-10-26 2008-05-01 Charles Chang Beverage container construction
US7617945B2 (en) * 2003-09-19 2009-11-17 Gabe Cherian Pull tab
US8196767B2 (en) * 1998-12-04 2012-06-12 Crown Cork & Seal Technologies Corporation Small diameter can end with large opening

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129541A (en) * 1991-06-04 1992-07-14 Buhrke Industries, Inc. Easy open ecology end for cans
US6164480A (en) * 1999-03-30 2000-12-26 Crown Cork & Seal Technologies Corporation Can lid with stay-on-tab
US20070108208A1 (en) * 2005-11-15 2007-05-17 Sparktab Inc. Container end closure with pull tab

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257529A (en) * 1979-04-12 1981-03-24 National Steel Corporation Easy-open retained tab structure for beverage can
US8196767B2 (en) * 1998-12-04 2012-06-12 Crown Cork & Seal Technologies Corporation Small diameter can end with large opening
US20070108209A1 (en) * 2002-06-11 2007-05-17 Jeong-Wook Jeon Easily openable can lid
US7617945B2 (en) * 2003-09-19 2009-11-17 Gabe Cherian Pull tab
US20070131693A1 (en) * 2005-12-07 2007-06-14 Daiwa Can Company Easy open can lid
US20080099480A1 (en) * 2006-10-26 2008-05-01 Charles Chang Beverage container construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033174B2 (en) 2013-03-15 2015-05-19 Ball Corporation Easy access opening tab for a container end closure
USD999631S1 (en) * 2021-07-23 2023-09-26 Stolle Machinery Company, Llc Ring pull tab
USD1019312S1 (en) * 2022-09-28 2024-03-26 Shenzhen Yingxiang Technology Co., Ltd. Bottle opener

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Publication number Publication date
WO2013028549A1 (en) 2013-02-28
BR112013020843A2 (pt) 2016-10-18
MX2013010575A (es) 2013-10-07
MX337758B (es) 2016-03-17

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AS Assignment

Owner name: BALL CORPORATION, COLORADO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FRANK, DENNIS KEITH;REEL/FRAME:029158/0944

Effective date: 20121002

STCB Information on status: application discontinuation

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