Patent US2628286A successfully refreshed from Google Patents.
US2628286A
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Magnetic head construction
Assignee: RCA Corp
•
Filing: 1950-03-24
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Granted: 1953-02-10
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Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
- 👤 Rettinger Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:38
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/10; G11B23/00; G11B23/50; G11B5/127; G11B5/147; G11B5/17; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2413108A
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US2469444A
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US2493742A
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US2513617A
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US2549771A
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US2513653A
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US2508485A
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US2555110A
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |