US2611869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial system
Assignee: International Standard Electric Corp
•
Filing: 1945-05-01
•
Granted: 1952-09-23
•
Expires: 1965-05-01
Abstract
No abstract record available.
Inventors
- 👤 Willoughby Eric Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:40
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/09; H01Q1/00; H01Q1/40; H01Q13/00; H01Q13/20; H01Q13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2129711A
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US2460401A
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US2313046A
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US2429640A
Cited
US2425336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |