Patent US2985395A successfully refreshed from Google Patents.
US2985395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing apparatus
Assignee: RCA Corp
•
Filing: 1954-07-01
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Granted: 1961-05-23
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Expires: 1974-07-01
Abstract
No abstract record available.
Inventors
- 👤 John J Hoehn
- 👤 Fielding B Hills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:53
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/56; G11B15/00; G11B15/18; G11B15/44; G11B15/442; G11B15/46; G11B15/48
Claims Analysis
Total Claims: 0
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |