US2707724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coin control circuit for postpay telephone paystations
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1952-10-07
•
Granted: 1955-05-03
•
Expires: 1972-10-07
Abstract
No abstract record available.
Inventors
- 👤 Gallagher Ray John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:14
CPC Classifications
H; H04; H04M; H04M17/00; H04M17/02; H04M17/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US661130A
Cited
US1790055A
Cited
US1868378A
Cited
US1963402A
Cited
US2066392A
Cited
US2137409A
Cited
US2367769A
Cited
US2642496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |