US2886799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static magnetic delay-line
Assignee: RCA Corp
•
Filing: 1952-06-02
•
Granted: 1959-05-12
•
Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Horatio N Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:25
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832118A
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US2308778A
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US2246449A
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US2410540A
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US2386743A
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US2574438A
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US2617704A
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US2519513A
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US2591931A
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US2591406A
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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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |