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US3004110A
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Sound scanning device for perforated sound carriers having magnetic sound tracks
Assignee: Kamera und Kinowerke Dresden VEB
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Filing: 1957-01-30
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Granted: 1961-10-10
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Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 Schutze Siegfried
- 👤 Stuhmke Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:18
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/62; G11B15/18; G11B15/26; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH298942A
Cited
US2490771A
Cited
US2453031A
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US2603721A
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US2918537A
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US2658427A
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US2542590A
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US2793253A
Cited
US2844434A
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US2927972A
Cited
US2768244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |