Patent US2281542A successfully refreshed from Google Patents.
US2281542A
Expired / Lapsed
US
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Electrical conductor
Assignee: AT&T Inc
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Filing: 1939-03-03
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Granted: 1942-05-05
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Expires: 1959-03-03
Abstract
No abstract record available.
Inventors
- 👤 William T Barrans
- 👤 Paul M Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/008; D; D04; D04C; D04C1/00; D04C1/02; D04C1/06; D04C1/12; D04C3/00; D04C3/02; D04C3/12; D04C3/48; H01B13/22; H01B13/26; H01B13/2606; D10; D10B; D10B2401/00; D10B2401/06; D10B2401/061; Y; Y10; Y10S; Y10S264/00; Y10S264/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-05-04 | 1945-11-03 | 1946-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-04 | 1949-11-03 | 1950-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-04 | 1953-11-03 | 1954-05-05 | $7700.00 | Window Closed / Lapsed |