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US2697157A
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Elastic conductor
Assignee: AT&T Inc
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Filing: 1952-04-10
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Granted: 1954-12-14
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Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Kersta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:33
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/06; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2234068A
Cited
US2142625A
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US2304210A
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US2343442A
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US2351459A
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US2408416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |