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US3457945A
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US
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Agricultural irrigation
Assignee: Eau et Feu SA
•
Filing: 1966-08-16
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Granted: 1969-07-29
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Expires: 1986-08-16
Abstract
No abstract record available.
Inventors
- 👤 Michel Leon Jean Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:34
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/02; F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; B; B65; B65H; B65H2701/00; B65H2701/30; B65H2701/33; B65H2701/333; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2148419A
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US2518990A
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US2570573A
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US2746774A
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US3221920A
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US3195932A
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US3150830A
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US3346213A
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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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |