US2782399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switching device
Assignee: RCA Corp
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Filing: 1953-03-02
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Granted: 1957-02-19
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Expires: 1973-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jan A Rajchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/81; H04; H04N; H04N3/00; H04N3/10; H04N3/14; H04Q; H04Q3/00; H04Q3/42; H04Q3/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |