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US2862066A
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US
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Means for recording and reproducing acoustic signals
Assignee: Zeiss Ikon AG
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Filing: 1955-08-03
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Granted: 1958-11-25
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Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Thiele Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:39
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/17; G11B5/02; G11B5/187; G11B5/23; G11B5/235
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |