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US2892042A
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Amplification regulation in multistage amplifier apparatus
Assignee: Siemens and Halske AG
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Filing: 1954-11-30
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Granted: 1959-06-23
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Leypold Dieter
- 👤 Schucht Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/02; H03G3/04; H03G3/06; H03G3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2224699A
Cited
US2178333A
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US2212337A
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US2468082A
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US2337423A
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US2548901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |