Patent US3309875A successfully refreshed from Google Patents.
US3309875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation installation and mobile vehicle for producing the same
Assignee: Individual
•
Filing: 1964-06-29
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Granted: 1967-03-21
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Niederwemmer Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:47
CPC Classifications
E; E02; E02B; E02B13/00; A; A01; A01G; A01G25/00; A01G25/06; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN INSTALLATION FOR IRRIGATING ARID AND SEMI-ARID SOILS, INCLUDING AN ELONGATED ARCUATE IMPERFORATE FLEXIBLE PLASTIC FOIL POSITIONED IN A COMPACTED EXCAVATED CHANNEL IN THE SOIL FOR SERVING AS A WATER RESERVOIR, SAID ARCUATE PLASTIC FOIL HAVING THE CONCAVITY THERE OF DIRECTED UPWARDLY WITH UPPER SPACED TERMINAL EDGES EXTENDING AXIALLY THEREOF AND LOCATED SLIGHTLY BELOW THE MAXIMUM SOIL TILLING DEPTH, AND A FLEXIBLE PERFORATED WATER SUPPLY CONDUIT SUPPORTED WITHIN THE CONCAVITY BY THE LOWER PORTION OF THE ARCUATE PLASTIC FOIL AND EXTENDING AXIALLY OF THE FOIL BELOW THE PLANE OF SAID EDGES.
Claim 2
Dependent Claim
91 words
AN INSTALLATION FOR IRRIGATING ARID AND SEMI-ARID SOILS, INCLUDING AN ELONGATED ARCUATE IMPERFORATE FLEXIBLE PLASTIC FOIL POSITIONED IN A COMPACTED EXCAVATED CHANNEL IN THE SOIL FOR SERVING AS A WATER RESERVOIR, SAID ARCUATE PLASTIC FOIL HAVING THE CONCAVITY THERE OF DIRECTED UPWARDLY WITH UPPER SPACED TERMINAL EDGES EXTENDING AXIALLY THEREOF AND LOCATED SLIGHTLY BELOW THE MAXIMUM SOIL TILLING DEPTH, AND A FLEXIBLE PERFORATED WATER SUPPLY CONDUIT SUPPORTED WITHIN THE CONCAVITY BY THE LOWER PORTION OF THE ARCUATE PLASTIC FOIL AND EXTENDING AXIALLY OF THE FOIL BELOW THE PLANE OF SAID EDGES.
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |