Patent US2618699A successfully refreshed from Google Patents.
US2618699A
Expired / Lapsed
US
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Telegraph system
Assignee: British Telecommunications PLC
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Filing: 1947-10-29
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Granted: 1952-11-18
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Dain Gordon Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:02
CPC Classifications
H; H04; H04L; H04L12/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |