US2945375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane instruments
Assignee: Safe Flight Instrument LLC
•
Filing: 1954-02-05
•
Granted: 1960-07-19
•
Expires: 1974-02-05
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Greene
- 👤 Dale H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
B; B64; B64D; B64D45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2328384A
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US2486779A
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GB601971A
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US2414318A
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US2579902A
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US2662706A
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US2553983A
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GB660854A
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US2579617A
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US2624529A
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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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |