US2682610A
Expired / Lapsed
US
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Assignee: AT&T Inc
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Filing: 1951-12-06
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Granted: 1954-06-29
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Expires: 1971-12-06
Abstract
No abstract record available.
Inventors
- 👤 Archie P King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:27
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; H01P1/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364371A
Cited
US2362561A
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US2607849A
Cited
US2441598A
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US2606248A
Cited
US2458579A
Cited
US2556001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |