US2908759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic toll ticketing telephone systems
Assignee: General Telephone Laboratories Inc
•
Filing: 1954-02-12
•
Granted: 1959-10-13
•
Expires: 1974-02-12
Abstract
No abstract record available.
Inventors
- 👤 Edward S Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297365A
Cited
US2352492A
Cited
US2697748A
Cited
US2445829A
Cited
US2411526A
Cited
US2782257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |