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Patent US2587005A successfully refreshed from Google Patents.
US2587005A
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Signal conversion system
Assignee: RCA Corp
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Filing: 1947-10-29
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Granted: 1952-02-26
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Smith John Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:31
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/20; H04N11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2280191A
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US2273172A
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US2335180A
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US2423769A
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US2408108A
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US2403562A
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US2415981A
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US2381902A
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US2459131A
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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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |