US2299689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of electrical conductors
Assignee: AT&T Inc
•
Filing: 1941-03-05
•
Granted: 1942-10-20
•
Expires: 1961-03-05
Abstract
No abstract record available.
Inventors
- 👤 Hal F Fruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/088; C; C23; C23D; C23D5/00; Y; Y10; Y10S; Y10S118/00; Y10S118/19
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) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |