US20130307395A1 - Slide storage assembly - Google Patents

Slide storage assembly Download PDF

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Publication number
US20130307395A1
US20130307395A1 US13/892,656 US201313892656A US2013307395A1 US 20130307395 A1 US20130307395 A1 US 20130307395A1 US 201313892656 A US201313892656 A US 201313892656A US 2013307395 A1 US2013307395 A1 US 2013307395A1
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US
United States
Prior art keywords
slide
storage assembly
layer
spacer elements
container
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
US13/892,656
Inventor
Falk Schlaudraff
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.)
Leica Microsystems CMS GmbH
Original Assignee
Leica Microsystems CMS GmbH
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 Leica Microsystems CMS GmbH filed Critical Leica Microsystems CMS GmbH
Assigned to LEICA MICROSYSTEMS CMS GMBH reassignment LEICA MICROSYSTEMS CMS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHLAUDRAFF, FALK
Publication of US20130307395A1 publication Critical patent/US20130307395A1/en
Abandoned legal-status Critical Current

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Classifications

    • A47B88/0451—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/52—Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/0096—Casings for storing test samples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/02—Adapting objects or devices to another
    • B01L2200/025—Align devices or objects to ensure defined positions relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/02—Adapting objects or devices to another
    • B01L2200/028—Modular arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0809—Geometry, shape and general structure rectangular shaped
    • B01L2300/0822—Slides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/2813—Producing thin layers of samples on a substrate, e.g. smearing, spinning-on
    • G01N2001/2833—Collecting samples on a sticky, tacky, adhesive surface
    • G01N2001/284—Collecting samples on a sticky, tacky, adhesive surface using local activation of adhesive, i.e. Laser Capture Microdissection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
    • G01N2035/00089—Magazines
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/34—Microscope slides, e.g. mounting specimens on microscope slides

Definitions

  • the present invention relates to a slide storage assembly having a slide container and at least one slide spacer.
  • specimen slides e.g. glass slides with or without a membrane, etc.
  • specimen slides e.g. glass slides with or without a membrane, etc.
  • Specimen slides of various shapes and sizes are used, which rules out the use of conventional standard-size slide containers for further storage and transport.
  • slides with a membrane, of the kind frequently used in laser microdissection are very pressure-sensitive and should not be touched on the membrane.
  • special slide containers have to be produced, which is a complex and expensive process.
  • a slide storage assembly has a plurality of spacer elements and a slide container configured to accommodate a stack of at least two slide layers, wherein each slide layer comprises a slide and at least two of the spacer elements.
  • the invention provides a slide storage assembly with which slides can be easily and safely stored and transported.
  • the slide storage assembly comprises a slide container into which the slides can be placed together with spacer elements.
  • the spacer elements ensure a defined alignment of the slides with the slide container and with one another.
  • different types of slides i.e. of different shapes and/or sizes
  • Both the container and the spacer elements may be produced particularly easily, rapidly and inexpensively. It is thus also possible to provide a safe and reliable storage and transport option for a relatively small number of slides simply and cheaply.
  • the slide storage assembly is configured so that the slide container holds a stack of several layers, each layer consisting of a slide and at least two associated spacer element. Depending on the embodiment, preferably exactly or at least two, three or four spacer elements will be sufficient per layer to hold the slide securely in the slide container. Usually, not more than six or eight spacer elements will be necessary per layer to hold the slide. Preferably the spacer elements of adjacent layers in a stack are in contact with one another, i.e. are placed on top of one another.
  • the slide container is a cuboid or cylindrical container, having a continuous interior with no compartments, which is particularly made of plastics.
  • a spacer element may preferably be embodied as a cuboid with an inwardly projecting edge or corner, particularly of plastics.
  • the slide storage assembly is expediently embodied such that the inwardly projecting edge or corner delimits a support surface for a slide placed therein.
  • Containers and spacer elements of this kind are particularly simple and cheap to produce.
  • each slide layer may comprise the slide and exactly four spacer elements with inwardly projecting corners.
  • the depth of the inwardly projecting edge or corner defines a support surface for the slide, the height of the inwardly projecting edge or corner defines an upward spacing. It is dimensioned so as to be taller than the height (“thickness”) of a slide to be stored therein.
  • the present invention has the particular advantage that slides of different shapes and sizes can be stored and transported particularly easily by the provision of different spacers and/or slide containers in slide storage assemblies according to the invention.
  • the slide storage assemblies according to the invention are particularly suitable for small numbers of slides, particularly ranging from two to ten.
  • FIG. 1 shows a first preferred embodiment of a spacer element of a slide storage assembly according to the invention.
  • FIG. 2 shows a second preferred embodiment of a spacer element of a slide storage assembly according to the invention.
  • FIG. 3 shows a preferred embodiment of a slide storage assembly according to the invention having a slide container in which a plurality of layers comprising spacer elements and slides are placed.
  • FIG. 1 shows a first preferred embodiment of a spacer element 100 in perspective view.
  • the spacer element consists of a cuboid 110 , particularly made of plastics, with an inwardly projecting edge 120 .
  • the edge 120 delimits a support surface 121 which serves as a support surface for a slide.
  • the edge 120 further delimits an abutment surface 122 , which serves as an outer abutment surface for a slide lying on the support surface 121 .
  • a height h of the abutment surface 122 is expediently at least the same height as a thickness d of a slide 400 to be accommodated, so that stacked spacer elements also rest on one another and not on the slides.
  • a height h s of the step remaining determines the distance between stacked slides 400 . This height h s is always greater than the thickness or height of the object on the slide (minus the difference between h and d).
  • the stack surfaces are defined by an upper side 111 and an underside 112 of the spacer element, which come to rest on one another when the spacer elements are stacked.
  • the spacer element 200 according to FIG. 2 corresponds in its essential functions to the spacer element 100 according to FIG. 1 . Only, instead of the edge 120 , it comprises an inwardly projecting corner 220 , which delimits a support surface 221 and two abutment surfaces 222 .
  • the spacer element 200 expediently serves to accommodate one corner of a slide, whereas the spacer element 100 expediently serves to accommodate one edge of a slide.
  • FIG. 3 shows a preferred embodiment of a slide storage assembly 300 according to the invention in which, for reasons of greater clarity, not all the corners and edges of the slides and spacer elements are shown.
  • the slide storage assembly 300 comprises a cuboid slide container 301 made of plastics, in which four layers of slides 400 with associated spacer elements 100 , 200 are stacked.
  • the slide container 301 and the spacer elements 100 , 200 are of such dimensions that the slide 400 to be accommodated fits precisely into the recesses provided by the abutment surfaces 121 of the spacer elements 100 , 200 inside the slide container 301 .
  • the vertical extent (i.e. perpendicular to the layers) of a spacer element is greater than the vertical extent of the slide in the same layer, so that the spacer elements prevent the slides 400 from touching one another.
  • the horizontal extent (i.e. in the plane of the layer) of a spacer element is preferably less than the horizontal extent of the slide in the same layer, as only individual points of a slide have to be supported.
  • the slides 400 are thus firmly and securely held in the slide storage assembly 300 , with the result that, in particular, tissue samples deposited on the slides 400 remain undamaged.

Abstract

The invention relates to a slide storage assembly (300) having spacer elements (100, 200) and a slide container (301), which is embodied to accommodate a stack of at least two slide layers, each slide layer comprising a slide (400) and at least two of the spacer elements (100, 200).

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application claims priority of German patent application number 10 2012 208 152.6 filed May 15, 2012, the entire disclosure of which is incorporated by reference herein.
    • FIELD OF THE INVENTION
  • The present invention relates to a slide storage assembly having a slide container and at least one slide spacer.
    • BACKGROUND OF THE INVENTION
  • In laser microdissection, small samples are excised from tissue and applied to specimen slides (e.g. glass slides with or without a membrane, etc.) for further use. Specimen slides of various shapes and sizes are used, which rules out the use of conventional standard-size slide containers for further storage and transport. Usually, a relatively small number of slides of a special size have to be stored and transported safely without damaging or contaminating the material applied to them and/or the slides themselves. For example, slides with a membrane, of the kind frequently used in laser microdissection, are very pressure-sensitive and should not be touched on the membrane. For storage and transport, special slide containers have to be produced, which is a complex and expensive process.
  • It is desirable to have simple means available for securely storing and transporting slides, regardless of their dimensions.
    • SUMMARY OF THE INVENTION
  • According to the invention, a slide storage assembly has a plurality of spacer elements and a slide container configured to accommodate a stack of at least two slide layers, wherein each slide layer comprises a slide and at least two of the spacer elements. Advantageous embodiments are the subject the description that follows.
    • ADVANTAGES OF THE INVENTION
  • The invention provides a slide storage assembly with which slides can be easily and safely stored and transported. The slide storage assembly comprises a slide container into which the slides can be placed together with spacer elements. The spacer elements ensure a defined alignment of the slides with the slide container and with one another. Also different types of slides (i.e. of different shapes and/or sizes) may be placed in the same slide container, using suitable, optionally different, spacer elements. Both the container and the spacer elements may be produced particularly easily, rapidly and inexpensively. It is thus also possible to provide a safe and reliable storage and transport option for a relatively small number of slides simply and cheaply.
  • The slide storage assembly is configured so that the slide container holds a stack of several layers, each layer consisting of a slide and at least two associated spacer element. Depending on the embodiment, preferably exactly or at least two, three or four spacer elements will be sufficient per layer to hold the slide securely in the slide container. Usually, not more than six or eight spacer elements will be necessary per layer to hold the slide. Preferably the spacer elements of adjacent layers in a stack are in contact with one another, i.e. are placed on top of one another.
  • According to a preferred embodiment, the slide container is a cuboid or cylindrical container, having a continuous interior with no compartments, which is particularly made of plastics. A spacer element may preferably be embodied as a cuboid with an inwardly projecting edge or corner, particularly of plastics. The slide storage assembly is expediently embodied such that the inwardly projecting edge or corner delimits a support surface for a slide placed therein. Containers and spacer elements of this kind are particularly simple and cheap to produce. E.g. for accommodating rectangular slides, each slide layer may comprise the slide and exactly four spacer elements with inwardly projecting corners. The depth of the inwardly projecting edge or corner defines a support surface for the slide, the height of the inwardly projecting edge or corner defines an upward spacing. It is dimensioned so as to be taller than the height (“thickness”) of a slide to be stored therein.
  • The present invention has the particular advantage that slides of different shapes and sizes can be stored and transported particularly easily by the provision of different spacers and/or slide containers in slide storage assemblies according to the invention. The slide storage assemblies according to the invention are particularly suitable for small numbers of slides, particularly ranging from two to ten.
  • Further features and embodiments of the invention will become apparent from the description and the attached drawings.
  • It will be understood that the features mentioned hereinbefore and those still to be described hereinafter may be used not only in the particular combination specified but also in other combinations or on their own, without departing from the scope of the present invention.
  • The invention is schematically illustrated in the drawings by means of an embodiment by way of example and is hereinafter described in detail with reference to the drawings.
    • BRIEF DESCRIPTION OF THE DRAWING VIEWS
  • FIG. 1 shows a first preferred embodiment of a spacer element of a slide storage assembly according to the invention.
  • FIG. 2 shows a second preferred embodiment of a spacer element of a slide storage assembly according to the invention.
  • FIG. 3 shows a preferred embodiment of a slide storage assembly according to the invention having a slide container in which a plurality of layers comprising spacer elements and slides are placed.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • FIG. 1 shows a first preferred embodiment of a spacer element 100 in perspective view. The spacer element consists of a cuboid 110, particularly made of plastics, with an inwardly projecting edge 120. The edge 120 delimits a support surface 121 which serves as a support surface for a slide. The edge 120 further delimits an abutment surface 122, which serves as an outer abutment surface for a slide lying on the support surface 121.
  • A height h of the abutment surface 122 is expediently at least the same height as a thickness d of a slide 400 to be accommodated, so that stacked spacer elements also rest on one another and not on the slides. A height hs of the step remaining determines the distance between stacked slides 400. This height hs is always greater than the thickness or height of the object on the slide (minus the difference between h and d). The stack surfaces are defined by an upper side 111 and an underside 112 of the spacer element, which come to rest on one another when the spacer elements are stacked.
  • The spacer element 200 according to FIG. 2 corresponds in its essential functions to the spacer element 100 according to FIG. 1. Only, instead of the edge 120, it comprises an inwardly projecting corner 220, which delimits a support surface 221 and two abutment surfaces 222.
  • The spacer element 200 expediently serves to accommodate one corner of a slide, whereas the spacer element 100 expediently serves to accommodate one edge of a slide.
  • FIG. 3 shows a preferred embodiment of a slide storage assembly 300 according to the invention in which, for reasons of greater clarity, not all the corners and edges of the slides and spacer elements are shown.
  • The slide storage assembly 300 comprises a cuboid slide container 301 made of plastics, in which four layers of slides 400 with associated spacer elements 100, 200 are stacked. The slide container 301 and the spacer elements 100, 200 are of such dimensions that the slide 400 to be accommodated fits precisely into the recesses provided by the abutment surfaces 121 of the spacer elements 100, 200 inside the slide container 301.
  • The vertical extent (i.e. perpendicular to the layers) of a spacer element is greater than the vertical extent of the slide in the same layer, so that the spacer elements prevent the slides 400 from touching one another. The horizontal extent (i.e. in the plane of the layer) of a spacer element is preferably less than the horizontal extent of the slide in the same layer, as only individual points of a slide have to be supported.
  • The slides 400 are thus firmly and securely held in the slide storage assembly 300, with the result that, in particular, tissue samples deposited on the slides 400 remain undamaged.

Claims (20)

What is claimed is:
1. A slide storage assembly (300) comprising:
a plurality of spacer elements (100, 200); and
a slide container (301) configured to accommodate a stack of at least two slide layers, wherein each slide layer comprises a slide (400) and at least two of the spacer elements (100, 200).
2. The slide storage assembly (300) according to claim 1, wherein the at least two spacer elements (100, 200) of a slide layer each comprise a support surface (121) on which the slide (400) of the slide layer rests.
3. The slide storage assembly (300) according to claim 2, wherein each spacer element of the at least two spacer elements (100, 200) of a slide layer comprises an abutment surface (122) extending perpendicularly to the support surface (121), wherein said abutment surface is configured to space the slide (400) of the slide layer from the slide container (301).
4. The storage assembly (300) according to claim 3, wherein at least one spacer element of the at least two spacer elements (100, 200) of a slide layer comprises two abutment surfaces (122) extending perpendicular to the support surface (121), said two abutment surfaces being configured to space the slide (400) of the slide layer from the slide container (301).
5. The slide storage assembly (300) according to claim 1, wherein at least one spacer element of the at least two spacer elements (100, 200) has an inwardly projecting edge (120)
6. The slide storage assembly (300) according to claim 1, wherein at least one spacer element of the at least two spacer elements (100, 200) has an inwardly projecting corner (220).
7. The slide storage assembly (300) according to claim 1, wherein at least one slide layer of the at least two slide layers comprises the slide (400) and four spacer elements (200) each having an inwardly projecting edge (120).
8. The slide storage assembly (300) according to clam 1, wherein each spacer element of the at least two spacer elements (100, 200) includes a planar upper side (111) and a planar underside (112).
9. The slide storage assembly (300) according to claim 8, wherein a spacer element (100, 200) of a first slide layer of the at least two slide layers abuts with its underside (112) on the upper side (111) of a spacer element (100, 200) of a second slide layer of the at least two slide layers located underneath the first slide layer in the stack.
10. The slide storage assembly (300) according to claim 8, wherein the slide container (301) includes a base, and a spacer element (100, 200) of a lowermost slide layer of the at least two slide layers abuts with its underside (112) on the base of the slide container (301).
11. The slide storage assembly (300) according to claim 1, wherein each slide layer of the at least two slide layers comprises exactly two spacer elements (100, 200).
12. The slide storage assembly (300) according to claim 1, wherein each slide layer of the at least two slide layers comprises exactly three spacer elements (100, 200).
13. The slide storage assembly (300) according to claim 1, wherein each slide layer of the at least two slide layers comprises exactly four spacer elements (100, 200).
14. The slide storage assembly (300) according to claim 1, wherein at least one of the at least two slide layers comprises a slide (400) of a first kind and at least one other of the at least two slide layers comprises a slide (400) of a second kind different from the first kind.
15. The slide storage assembly (300) according to claim 1, wherein the slide container (301) is configured to accommodate stacks of at most ten slide layers.
16. The slide storage assembly (300) according to claim 1, wherein the slide container (301) is configured to accommodate stacks of at most eight slide layers.
17. The slide storage assembly (300) according to claim 1, wherein the slide container (301) is configured to accommodate stacks of at most five slide layers.
18. The slide storage assembly (300) according to one claim 1, wherein the slide container (301) is configured as a cuboid or cylindrical container having a continuous interior.
19. The slide storage assembly (300) according to claim 1, wherein a vertical extent of each spacer element of the at least two spacer elements (100, 200) of a slide layer is greater than a vertical extent of the slide (400) of the same slide layer.
20. The slide storage assembly (300) according to claim 1, wherein a horizontal extent of each spacer element of the at least two spacer elements (100, 200) of a slide layer is less than a horizontal extent of the slide (400) of the same slide layer.
US13/892,656 2012-05-15 2013-05-13 Slide storage assembly Abandoned US20130307395A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012208152.6 2012-05-15
DE102012208152A DE102012208152A1 (en) 2012-05-15 2012-05-15 Slides storage assembly

Publications (1)

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US20130307395A1 true US20130307395A1 (en) 2013-11-21

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US13/892,656 Abandoned US20130307395A1 (en) 2012-05-15 2013-05-13 Slide storage assembly

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US (1) US20130307395A1 (en)
DE (1) DE102012208152A1 (en)

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* Cited by examiner, † Cited by third party
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US2728451A (en) * 1951-09-12 1955-12-27 Chicago Show Printing Company Metal sheet and corner protector
US2885139A (en) * 1955-08-24 1959-05-05 Fort Wayne Corrugated Paper Co Corner protector
US3302782A (en) * 1964-10-20 1967-02-07 Corning Glass Works Adjustable corner packaging pad
US3655113A (en) * 1970-06-18 1972-04-11 Carroll Packaging Inc Corner protector
US4063702A (en) * 1976-11-09 1977-12-20 Melvyn Wilde Corner protectors
US4679914A (en) * 1985-09-13 1987-07-14 Erie Scientific Company Microscope slide with top and bottom marking surfaces
US4851286A (en) * 1986-11-18 1989-07-25 United Foam Plastics Foamed plastic cushioning materials
US4951821A (en) * 1989-10-18 1990-08-28 Kempkes Duane E Packing corners for photographs
US5175041A (en) * 1991-01-28 1992-12-29 Innovative Enterprises, Inc. Corner and edge protector for packaging
US5447233A (en) * 1993-10-15 1995-09-05 Smith; Steven H. Corner protector for picture frames and the like
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US6012579A (en) * 1998-10-02 2000-01-11 Tindoll; Avalon Corner protector for flat material
US20070258857A1 (en) * 2006-05-04 2007-11-08 Sangha Jangbir S Specimen tray

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728451A (en) * 1951-09-12 1955-12-27 Chicago Show Printing Company Metal sheet and corner protector
US2885139A (en) * 1955-08-24 1959-05-05 Fort Wayne Corrugated Paper Co Corner protector
US3302782A (en) * 1964-10-20 1967-02-07 Corning Glass Works Adjustable corner packaging pad
US3655113A (en) * 1970-06-18 1972-04-11 Carroll Packaging Inc Corner protector
US4063702A (en) * 1976-11-09 1977-12-20 Melvyn Wilde Corner protectors
US4679914A (en) * 1985-09-13 1987-07-14 Erie Scientific Company Microscope slide with top and bottom marking surfaces
US4851286A (en) * 1986-11-18 1989-07-25 United Foam Plastics Foamed plastic cushioning materials
US4951821A (en) * 1989-10-18 1990-08-28 Kempkes Duane E Packing corners for photographs
US5175041A (en) * 1991-01-28 1992-12-29 Innovative Enterprises, Inc. Corner and edge protector for packaging
US5447233A (en) * 1993-10-15 1995-09-05 Smith; Steven H. Corner protector for picture frames and the like
US5769233A (en) * 1995-03-02 1998-06-23 Bestpak Holding B.V. Assembly of an object and four packaging elements, packaging element for use in this assembly, and packaging method
US6012579A (en) * 1998-10-02 2000-01-11 Tindoll; Avalon Corner protector for flat material
US20070258857A1 (en) * 2006-05-04 2007-11-08 Sangha Jangbir S Specimen tray

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LEICA MICROSYSTEMS CMS GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHLAUDRAFF, FALK;REEL/FRAME:030506/0874

Effective date: 20130515

STCB Information on status: application discontinuation

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