US4921702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet material for treating wounds in plant matter
Assignee: WINDWARD ISLAND BANANA GROWER'S ASSOCIATION
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Filing: 1988-04-21
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Granted: 1990-05-01
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Expires: 2008-04-21
Abstract
Abstract An absorbent sheet material for application to plant wounds comprises a flexible laminate of sheet material (the distal layer) and a permeable layer (the proximal layer), the layers being bonded together and the laminate containing in the proximal layer or between the layers, liquid absorbing solid particles and/or fibrous absorbent material and the laminate containing or having its proximal surface coated with a biologically active material which is a biostat or a biocide.
Inventors
- 👤 Nigel H. Banks
- 👤 Colin A. Borton
- 👤 Francis S. Leonce
- 👤 Terence J. Lomax
- 👤 Antony R. H. Meier
- 👤 Christopher J. Skiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:30
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/005; A; A01; A01G; A01G17/00; A01G17/18; A01N; A01N25/00; A01N25/34; A23; A23B; A23B7/00; A23B7/16; B32B27/00; B32B27/06; B32B27/10; B32B27/32; B32B5/00; B32B5/02; B32B5/022; B32B5/024; B32B5/22; B32B5/24; B32B5/26; B32B7/00; B32B7/04; B32B7/12; B32B2317/00; B32B2317/12; B32B2317/122; B32B2323/00; B32B2323/04; B32B2410/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10S428/913; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/254; Y10T442/00; Y10T442/60; Y10T442/674; Y10T442/693
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
An absorbent sheet material for application to plant wounds, which comprises a flexible laminate of a sheet material (the distal layer) and a permeable layer (the proximal layer), the layers being bonded together with the laminate containing in the proximal layer or between the layers, liquid absorbing solid particles and/or fibrous absorbent material and the laminate containing or having its proximal surface coated with a biologically active material which is a biostat or a biocide.
Claim 2
Dependent Claim
75 words
An absorbent sheet material for application to plant wounds, which comprises a flexible laminate of a sheet material (the distal layer) and a permeable layer (the proximal layer), the layers being bonded together with the laminate containing in the proximal layer or between the layers, liquid absorbing solid particles and/or fibrous absorbent material and the laminate containing or having its proximal surface coated with a biologically active material which is a biostat or a biocide.
Claim 3
Dependent Claim
21 words
A sheet material according to claim 1, in which the liquid absorbing particles are formed of a water absorbing synthetic polymer.
Claim 4
Dependent Claim
23 words
A sheet material according to claim 2, in which the absorbing particles are formed of a crosslinked polyacrylic acid or polymethacrylic acid derivative.
Claim 5
Dependent Claim
27 words
A sheet material according to claim 1, in which the fibrous absorbent material is cellulose fluff, said fluff constituting the sole absorbent or one of the absorbents.
Claim 6
Dependent Claim
15 words
A sheet material according to claim 1, which additionally comprises clay as a liquid absorbent.
Claim 7
Dependent Claim
29 words
A sheet material according to claim 1, in which the proximal layer is a lightweight cellulose tissue or a permeable or perforated woven or non-woven synthetic polymeric sheet material.
Claim 8
Dependent Claim
33 words
A sheet material according to claim 1, in which the proximal layer consists of a layer of cellulose fluff or other loose fibrous material and contains sufficient adhesive to make the layer coherent.
Claim 9
Dependent Claim
27 words
A sheet material according to claim 1, in which the distal layer is an absorbent cellulose paper or an absorbent woven or non-woven synthetic polymeric sheet material.
Claim 10
Dependent Claim
20 words
A sheet material according to claim 8, in which the distal layer includes an impermeable or semiimpermeable coating or membrane.
Claim 11
Dependent Claim
32 words
A sheet material according to claim 1, in the form of sachets which are sealed round part or the whole of their peripheries with adhesive, or by heat sealing, or mechanical crimping.
Claim 12
Dependent Claim
43 words
A method of staunching sap or latex flow from a wound in plant matter, which comprises applying to the wound an absorbent sheet material as set forth in claim 1, the proximal surface of the sheet material being in contact with the wound.
Claim 13
Dependent Claim
19 words
A method according to claim 11, in which the absorbing particles are formed of a water absorbing synthetic polymer.
Claim 14
Dependent Claim
23 words
A method according to claim 11, in which the liquid absorbing particles are formed of a cross-linked polyacrylic acid or polymethacrylic acid derivative.
Claim 15
Dependent Claim
26 words
A method according to claim 11, in which the fibrous absorbent material is cellulose fluff, said fluff constituting the sole absorbent or one of the absorbents.
Claim 16
Dependent Claim
26 words
A method according to claim 11, in which the distal layer is an absorbent cellulose paper or an absorbent woven or non-woven synthetic polymeric sheet material.
Claim 17
Dependent Claim
19 words
A method according to claim 11, in which the distal layer includes an impermeable or semiimpermeable coating or membrane.
Claim 18
Dependent Claim
38 words
A method according to claim 11, in which the sheet material is in the form of a sachet which is sealed round at least a part of its periphery with adhesive or by heat sealing or mechanical crimping.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |