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Patent US2960340A successfully refreshed from Google Patents.
US2960340A
Expired / Lapsed
US
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Automatic record changer for phonographs
Assignee: Georg Wiegandt & Sohne
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Filing: 1956-10-05
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Granted: 1960-11-15
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Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 Seidel Robert Hermann
- 👤 Rietzel Heinz Hugo Wilhelm
- 👤 Fiedler Alexander Rudi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:41
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/012; G11B5/016; G11B17/00; G11B17/22; G11B17/30
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |