US2530812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting detail for flexible conductors
Assignee: AT&T Inc
•
Filing: 1947-07-10
•
Granted: 1950-11-21
•
Expires: 1967-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Bertram H Carmer
- 👤 Frank A Dutra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:37
CPC Classifications
F; F16; F16L; F16L3/00; Y; Y10; Y10S; Y10S206/00; Y10S206/825
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US124897A
Cited
US644858A
Cited
US955342A
Cited
US1702911A
Cited
FR663182A
Cited
US1912115A
Cited
US2171331A
Cited
US2258745A
Cited
US2408253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |