Patent US2996197A successfully refreshed from Google Patents.
US2996197A
Expired / Lapsed
US
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Irrigation pipe moving apparatus
Assignee: LR Nelson Manufacturing Co Inc
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Filing: 1957-12-30
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Granted: 1961-08-15
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Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Donald L Smeal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:10
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09; F; F16; F16L; F16L1/00; F16L1/024; F16L1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1906362A
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US2486479A
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US2574634A
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US2641149A
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US2818182A
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US2846081A
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US2807373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |