US2492568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductor cables and a method of making cables
Assignee: AT&T Inc
•
Filing: 1947-01-28
•
Granted: 1949-12-27
•
Expires: 1967-01-28
Abstract
No abstract record available.
Inventors
- 👤 Gillis Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/20; H01B7/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US403262A
Cited
US2121942A
Cited
US2216435A
Cited
US2307588A
Cited
US2376854A
Cited
US2396098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |