US2941034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Translating device for telegraph system comprising a two-wire line used for both directions of transmission
Assignee: Compagnie Industrielle des Telephones SA
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Filing: 1955-06-07
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Granted: 1960-06-14
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Expires: 1975-06-07
Abstract
No abstract record available.
Inventors
- 👤 Alizon Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:17
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/20; H04L25/207; H04L5/00; H04L5/14; H04L5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1736786A
Cited
US1472463A
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US1817989A
Cited
US1834279A
Cited
US1965347A
Cited
US2047091A
Cited
US2055575A
Cited
US2761896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |