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US2619518A
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Assignee: AT&T Inc
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Filing: 1949-12-08
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Granted: 1952-11-25
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Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Le Roy W Kelsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:47
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1126733A
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US1150926A
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Cited
US1946265A
Cited
US2439326A
Cited
US2522700A
Cited
US2546824A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |