US2530659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft booster control system
Assignee: Glenn L Martin Co
•
Filing: 1946-03-23
•
Granted: 1950-11-21
•
Expires: 1966-03-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:28
CPC Classifications
B; B64; B64C; B64C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1373568A
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US1516164A
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US2138834A
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US2065219A
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US2114157A
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US2134399A
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US2224725A
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US2366382A
Cited
US2278557A
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US2389274A
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US2345531A
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US2378829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |