US2904697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal translating devices and circuits
Assignee: General Electric Co
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Filing: 1956-07-12
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Granted: 1959-09-15
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Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Richard E Halsted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:01
CPC Classifications
H; H10; H10F; H10F55/00; H10F55/20; C; C09; C09K; C09K11/00; C09K11/08; C09K11/88; C09K11/881; C09K11/883; H03; H03F; H03F17/00; H04; H04B; H04B10/00; H05; H05B; H05B33/00; H05B33/12
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |