US2742640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial systems
Assignee: The General Electric Company PLC
•
Filing: 1952-03-18
•
Granted: 1956-04-17
•
Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 Cronin Denis Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/24; H01Q; H01Q13/00; H01Q13/06; H01Q13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2322971A
Cited
US2407068A
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US2459768A
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US2451876A
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US2557951A
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US2549783A
Cited
US2597143A
Cited
US2584399A
Cited
GB649944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |