Patent US4786550A successfully refreshed from Google Patents.
US4786550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meltblown and coform materials having application as seed beds
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1985-05-06
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Granted: 1988-11-22
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Expires: 2005-05-06
Abstract
Abstract The invention is generally accomplished by providing a seedbed of meltblown material having incorporated therein seeds. It is preferred that in addition to the incorporation of seeds that there is also incorporated absorbent material such as cellulose fibers and superabsorbent materials such as hydrogels.
Inventors
- 👤 Timothy M. McFarland
- 👤 James J. O'Connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:48
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/02; A01C1/04; A01C1/044; A01G; A01G20/00; A01G20/20; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2484; Y10T442/2525; Y10T442/2861; Y10T442/291; Y10T442/60; Y10T442/659; Y10T442/671; Y10T442/699
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
44 words
An article comprising a meltblown linear polyolefin polymer easily degraded by sunlight and a plurality of seeds embedded in the loose fibrous structure of said meltblown polymer with the proviso that said meltblown polymer comprises the fibers less than about 10 micrometers in diameter.
Claim 2
Dependent Claim
44 words
An article comprising a meltblown linear polyolefin polymer easily degraded by sunlight and a plurality of seeds embedded in the loose fibrous structure of said meltblown polymer with the proviso that said meltblown polymer comprises the fibers less than about 10 micrometers in diameter.
Claim 3
Dependent Claim
9 words
The article of claim 1 further comprising cellulose fibers.
Claim 4
Dependent Claim
8 words
The article of claim 1 further comprising superabsorbent.
Claim 5
Dependent Claim
13 words
The article of claim 1 wherein the article comprises a multiplicity of layers.
Claim 6
Dependent Claim
17 words
The article of claim 1 wherein the article has additives in each of a plurality of layers.
Claim 7
Dependent Claim
14 words
The article of claim 1 wherein said article further comprises cellulose fibers and superabsorbents.
Claim 8
Dependent Claim
15 words
The article of claim 1 wherein said article has a backing of spunbonded polymer material.
Claim 9
Dependent Claim
15 words
The article of claim 1 wherein said meltblown polymer is easily degraded by water action.
Claim 10
Dependent Claim
30 words
The article of claim 1 further comprising at least one member selected from the group consisting of fertilizer superabsorbents, colorants, herbicides, fungicides, rodenticides, odor repellents for animals, bacteria and spores.
Claim 11
Dependent Claim
68 words
A process for growing seeds comprising providing a seed bed comprising meltblown linear polyolefin polymer and a plurality of seeds embedded in the loose fibrous structure of said meltblown polymer, placing said seed bed on a suitable substrate and applying moisture to said seed bed with the proviso that said polymer is easily degraded by sunlight and said meltblown polymer comprises fibers of less than about 10 micrometers.
Claim 12
Dependent Claim
68 words
A process for growing seeds comprising providing a seed bed comprising meltblown linear polyolefin polymer and a plurality of seeds embedded in the loose fibrous structure of said meltblown polymer, placing said seed bed on a suitable substrate and applying moisture to said seed bed with the proviso that said polymer is easily degraded by sunlight and said meltblown polymer comprises fibers of less than about 10 micrometers.
Claim 13
Dependent Claim
11 words
The process of claim 10 wherein said seedbed further comprises superabsorbent.
Claim 14
Dependent Claim
32 words
The process of claim 10 wherein said seedbed further comprises at least one material selected from the group consisting of superabsorbents, colorants, herbicides, spores fungicides, rodenticides, odor repellents for animals, and bacteria.
Claim 15
Dependent Claim
12 words
The process of claim 10 wherein said polymer is ultraviolet degradable polypropylene.
Claim 16
Dependent Claim
13 words
The process of claim 10 wherein said seedbed further comprises divellicated wood fibers.
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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) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |