Patent US2881254A successfully refreshed from Google Patents.
US2881254A
Expired / Lapsed
US
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Postpay paystation with coin control circuit
Assignee: General Telephone Laboratories Inc
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Filing: 1953-04-27
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Granted: 1959-04-07
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Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Gallagher Ray John
- 👤 Clarence E Lomax
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
H; H04; H04M; H04M17/00; H04M17/02; H04M17/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB365022A
Cited
US2000804A
Cited
US2082561A
Cited
US2224702A
Cited
US2281062A
Cited
US2214245A
Cited
US2623950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |