US2590540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron beacon
Assignee: Westinghouse Electric Corp
•
Filing: 1946-06-28
•
Granted: 1952-03-25
•
Expires: 1966-06-28
Abstract
No abstract record available.
Inventors
- 👤 Hagan L Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1615712A
Cited
US2069538A
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US2146724A
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US2217745A
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US2151549A
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US2226860A
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US2216707A
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US2400232A
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US2408039A
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US2408425A
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US2456666A
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US2414791A
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US2412345A
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US2445618A
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US2458574A
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US2396112A
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US2434957A
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US2436805A
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US2454971A
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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) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |