Patent US3054949A successfully refreshed from Google Patents.
US3054949A
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US
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Method of and apparatus for identifying discrete tip and ring conductor pairs in telephone cable
Assignee: AT&T Inc
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Filing: 1958-12-02
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Granted: 1962-09-18
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 George W Bates
- 👤 Robert F Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:55
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/229; G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/60
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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |