US3810328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mulch sheet
Assignee: APTEC INDUSTRIES Inc
•
Filing: 1973-01-11
•
Granted: 1974-05-14
•
Expires: 1993-01-11
Abstract
Abstract An improved mulch in sheet form which is adapted to hug the earth and consequently avoid interference with automated agricultural apparatus. The mulch is formed with an extensible kraft paper facing. The paper is selected to fade and become more reflective of the sun''s rays as the growing season progresses. The disclosed crepe-backed construction also contributes a multidirectional strength characteristic to the sheet and allows use of a relatively thin plast coating.
Inventors
- 👤 R Bryan
- 👤 J Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:30
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/32; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31906
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
19 words
A process as disclosed in claim 1 wherein said paper is extensible in both the machine and cross-machine directions.
Claim 2
Dependent Claim
24 words
A process as disclosed in claim 2 wherein said lower layer is formed of a black-pigmented polyethylene coating of about 0.0005 inches in thickness.
Claim 3
Dependent Claim
31 words
A process as disclosed in claim 3 wherein said cross-machine extension is achieved by ribbing said extensible kraft paper with ribs of about 25 percent of the thickness of the paper.
Claim 4
Dependent Claim
23 words
A process as disclosed in claim 4 wherein said sheet forms means to adapt said mulch to the contour of the earth thereabout.
Claim 5
Dependent Claim
31 words
A process as disclosed in claim 2 wherein said cross-machine extension is achieved by ribbing said extensible kraft paper with ribs of about 25 percent of the thickness of the paper.
Claim 6
Dependent Claim
24 words
A process as disclosed in claim 1 wherein said lower layer is formed of a black-pigmented polyethylene coating of about 0.0005 inches in thickness.
Claim 7
Dependent Claim
23 words
A process as disclosed in claim 7 wherein said sheet forms means to adapt said mulch to the contour of the earth thereabout.
Claim 8
Dependent Claim
23 words
A process as disclosed in claim 1 wherein said sheet forms means to adapt said mulch to the contour of the earth thereabout.
References Cited (Backward Citations)
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US2685150A
Cited
US2740742A
Cited
US3012928A
Cited
US3104197A
Cited
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Cited
US3418396A
Cited
US3493464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |