Patent US3568214A successfully refreshed from Google Patents.
US2945914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor seal leadin
Assignee: AT&T Inc
•
Filing: 1958-12-16
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Granted: 1960-07-19
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Expires: 1978-12-16
Abstract
No abstract record available.
Inventors
- 👤 Aamodt Thoralf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2425834A
Cited
US2661389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |