Patent EP0543107A2 successfully refreshed from Google Patents.
US2851677A
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US
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Assignee: RCA Corp
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Filing: 1955-09-23
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Granted: 1958-09-09
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Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Horatio N Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402989A
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US2610793A
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US2582480A
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US2652501A
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US2697178A
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US2666195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |