Patent US3479654A successfully refreshed from Google Patents.
US3479654A
Expired / Lapsed
US
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Domain propagation media organized for repertory dialer operation
Assignee: AT&T Inc
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Filing: 1966-05-16
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Granted: 1969-11-18
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Andrew H Bobeck
- 👤 James L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:45
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/10; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |