Patent US2676197A successfully refreshed from Google Patents.
US2676197A
Expired / Lapsed
US
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Glass to metal seal for deep-sea electric cable
Assignee: AT&T Inc
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Filing: 1950-11-17
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Granted: 1954-04-20
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Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jr William T Read
- 👤 Victor L Ronei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:10
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14; H01; H01J; H01J5/00; H01J5/32; H01J5/40; H01J5/42; H01J2893/00; H01J2893/0033; H01J2893/0034
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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |