US2536509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: RCA Corp
•
Filing: 1946-12-24
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Granted: 1951-01-02
•
Expires: 1966-12-24
Abstract
No abstract record available.
Inventors
- 👤 David G C Luck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:48
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/44; G01S1/46; G01S1/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738522A
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US1667792A
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US2253958A
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US2368318A
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US2406396A
Cited
US2422110A
Cited
US2417807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |