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US2867765A
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Assignee: Telefunken AG
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Filing: 1956-01-24
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Granted: 1959-01-06
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Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 Klettke Ernst
- 👤 Engelmann Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/24; H03J5/242; H01; H01F; H01F21/00; H01F21/02; H01F21/06; H01F21/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2226822A
Cited
US2276617A
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US2374824A
Cited
CH280990A
Cited
US2580895A
Cited
US2729746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |