US2773944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifying system with stand-by channel
Assignee: Bendix Aviation Corp
•
Filing: 1950-08-08
•
Granted: 1956-12-11
•
Expires: 1970-08-08
Abstract
No abstract record available.
Inventors
- 👤 John C Karlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/52; H03F1/54; H03F1/542
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1462057A
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US1666154A
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US1809637A
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US1788513A
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GB484287A
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US2246310A
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US2270771A
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US2229089A
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US2229158A
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US2245383A
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US2390869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |