Patent FR2423596A1 successfully refreshed from Google Patents.
US3137094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum flame crop thinner
Assignee: Individual
•
Filing: 1962-07-20
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Granted: 1964-06-16
•
Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 John R Nash
- 👤 Russell W Trout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:19
CPC Classifications
A; A01; A01B; A01B41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB529998A
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US753926A
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US2557303A
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US2487353A
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US2494720A
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US2460451A
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US2456901A
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US2569320A
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US2569194A
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US2904032A
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |