US3114316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mine clearing device
Assignee: Individual
•
Filing: 1953-04-29
•
Granted: 1963-12-17
•
Expires: 1973-04-29
Abstract
No abstract record available.
Inventors
- 👤 Leonidas R Littleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:57
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/12; F41H11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA493862A
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US224024A
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GB191120110A
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AT76705B
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US1140980A
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US2586541A
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US2675882A
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US2721617A
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US2697399A
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US2750884A
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US2775200A
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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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |