Patent US2997519A successfully refreshed from Google Patents.
US2997519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicoaxial line cables
Assignee: AT&T Inc
•
Filing: 1959-10-08
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Granted: 1961-08-22
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Expires: 1979-10-08
Abstract
No abstract record available.
Inventors
- 👤 Marion E Hines
- 👤 Raisbeck Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:40
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/20; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US334850A
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US730251A
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US1132676A
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US2034036A
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US2223116A
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DE686998C
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FR952417A
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US2614172A
Cited
US2636923A
Cited
US2796589A
Cited
US2952728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |