Patent US4283445A successfully refreshed from Google Patents.
US4283445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-woven organic mulch blanket with polyvinylacetate copolymer binder
Assignee: PROSEED CAYMAN Inc
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Filing: 1979-06-25
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Granted: 1981-08-11
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Expires: 1999-06-25
Abstract
Abstract A mulch blanket includes randomly oriented organic fibers held by a non-toxic biodegradable polymer binder. A method of forming the mulch blanket includes the steps of randomly laying short organic fibers in an elongated pile along a predetermined path and arranging the top exposed surface of the pile to be flat. A non-toxic biodegradable polymeric binder is then sprayed over the top exposed surface, curing the binder, and then the blanket is peeled off the pile.
Inventors
- 👤 Klaus Bartholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:11
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/35; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/28; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/20; Y10T442/2525; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
47 words
A non-woven mulch composite blanket adapted to be laid on a ground area comprising a sheet-like member made up of randomly oriented organic fibers each having a length not exceeding 2" and a binder of a non-toxic biodegradable polyvinylacetate copolymer such as to form a self-supporting sheet.
Claim 2
Dependent Claim
47 words
A non-woven mulch composite blanket adapted to be laid on a ground area comprising a sheet-like member made up of randomly oriented organic fibers each having a length not exceeding 2" and a binder of a non-toxic biodegradable polyvinylacetate copolymer such as to form a self-supporting sheet.
Claim 3
Dependent Claim
18 words
A blanket as defined in claim 1, wherein the fiber lengths vary between dust particle size and 2".
Claim 4
Dependent Claim
28 words
A non-woven organic mulch blanket as defined in claim 1, wherein the blanket is formed in widths of between 1 to 8 feet and is approximately 1/2" thick.
Claim 5
Independent Claim
65 words
A method of manufacturing a non-woven organic mulch blanket comprising the steps of randomly laying short organic fibers in an elongated pile along a predetermined path and arranging the top exposed surface of the pile to be flat, spraying a non-toxic biodegradable polyvinylacetate copolymer binder on the top exposed surface, curing said binder, and peeling off the so-formed blanket from the pile along said path.
Claim 6
Independent Claim
65 words
A method of manufacturing a non-woven organic mulch blanket comprising the steps of randomly laying short organic fibers in an elongated pile along a predetermined path and arranging the top exposed surface of the pile to be flat, spraying a non-toxic biodegradable polyvinylacetate copolymer binder on the top exposed surface, curing said binder, and peeling off the so-formed blanket from the pile along said path.
Claim 7
Dependent Claim
15 words
A method as defined in claim 4, wherein the blanket so-formed by peeling, is rolled.
References Cited (Backward Citations)
US225735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |