US2892165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature stabilized two-terminal semi-conductor filter circuit
Assignee: RCA Corp
•
Filing: 1954-10-27
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Granted: 1959-06-23
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Expires: 1974-10-27
Abstract
No abstract record available.
Inventors
- 👤 James E Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/14; H02M1/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2261335A
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US2324797A
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US2693565A
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US2675433A
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US2751548A
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US2666819A
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US2751545A
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US2751549A
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US2698416A
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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 |