US3384993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article for agricultural use
Assignee: Delta Co
•
Filing: 1965-09-08
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Granted: 1968-05-28
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Expires: 1985-09-08
Abstract
No abstract record available.
Inventors
- 👤 Charles V Kane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/30; A01G13/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A METHOD OF SUBSTANTIALLY PREVENTING GROUND SEEPAGE IN AN IRRIGATION DITCH, OR THE LIKE, WHILE ENRICHING THE WATER PASSING THROUGH SAME WITH A PLANT NUTRIENT SUBSTANCE, COMPRISING PROVIDING A FLEXIBLE, SUBSTANTIALLY WATER IMPERMEABLE SHEET OF A PLASTIC MATERIAL, SAID SHEET INCORPORATING A PLANT NUTRIENT SUBSTANCE IN A FORM TO ENABLE IT TO BE RELEASED FROM SAID SHEET BY WATER IN CONTACT WITH THE SHEET, LINING THE DITCH, OR THE LIKE, WITH SAID SHEET AND SECURING THE EDGES OF THE SHEET TO PREVENT ANY SUBSTANTIAL MOVEMENT OF THE SHEET, PASSING WATER THROUGH THE THUS LINED DITCH, OR THE LIKE, WHEREBY A PORTION OF THE PLANT NUTRIENT SUBSTANCE OF THE SHEET WILL BE DISSOLVED AND CARRIED BY THE WATER TO PLANT LIFE TO BE NOURISHED THEREBY, SAID SHEET SUBSTANTIALLY PREVENTING LOSS OF WATER DUE TO GROUND SEEPAGE AS THE WATER TRAVERSES THE LINED DITCH, OR THE LIKE.
Claim 2
Independent Claim
145 words
A METHOD OF SUBSTANTIALLY PREVENTING GROUND SEEPAGE IN AN IRRIGATION DITCH, OR THE LIKE, WHILE ENRICHING THE WATER PASSING THROUGH SAME WITH A PLANT NUTRIENT SUBSTANCE, COMPRISING PROVIDING A FLEXIBLE, SUBSTANTIALLY WATER IMPERMEABLE SHEET OF A PLASTIC MATERIAL, SAID SHEET INCORPORATING A PLANT NUTRIENT SUBSTANCE IN A FORM TO ENABLE IT TO BE RELEASED FROM SAID SHEET BY WATER IN CONTACT WITH THE SHEET, LINING THE DITCH, OR THE LIKE, WITH SAID SHEET AND SECURING THE EDGES OF THE SHEET TO PREVENT ANY SUBSTANTIAL MOVEMENT OF THE SHEET, PASSING WATER THROUGH THE THUS LINED DITCH, OR THE LIKE, WHEREBY A PORTION OF THE PLANT NUTRIENT SUBSTANCE OF THE SHEET WILL BE DISSOLVED AND CARRIED BY THE WATER TO PLANT LIFE TO BE NOURISHED THEREBY, SAID SHEET SUBSTANTIALLY PREVENTING LOSS OF WATER DUE TO GROUND SEEPAGE AS THE WATER TRAVERSES THE LINED DITCH, OR THE LIKE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |