US3040184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translation device having ferromagnetic core
Assignee: AT&T Inc
•
Filing: 1958-07-01
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Granted: 1962-06-19
•
Expires: 1978-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph F Dillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/80; H03C; H03C1/00; H03C1/08; H03C1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2692978A
Cited
US2762778A
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US2837483A
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US2854586A
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US2854412A
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US2825820A
Cited
US2938183A
Cited
US2883604A
Cited
US2868999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |