US2427198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor insulated with rubber compound layers bonded together
Assignee: AT&T Inc
•
Filing: 1942-08-18
•
Granted: 1947-09-09
•
Expires: 1962-08-18
Abstract
No abstract record available.
Inventors
- 👤 William P Frisco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/122; H; H01; H01B; H01B3/00; H01B3/18; H01B3/28; C08J2321/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2067405A
Cited
US2147620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |