US2958849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichannel magnetic reproducing apparatus
Assignee: Clevite Corp
•
Filing: 1954-10-29
•
Granted: 1960-11-01
•
Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 Begun Semi Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/02; G11B27/022; G11B27/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2424773A
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US2416445A
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US2440971A
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US2638402A
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US2672944A
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US2658579A
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US2698875A
Cited
US2700148A
Cited
US2675427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |