US2532096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power source
Assignee: AT&T Inc
•
Filing: 1946-03-16
•
Granted: 1950-11-28
•
Expires: 1966-03-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph V L Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:33
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/18; H02N2/186
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1213611A
Cited
US1218233A
Cited
GB176838A
Cited
US1481270A
Cited
GB188642A
Cited
US1510476A
Cited
US1493340A
Cited
US1544010A
Cited
US1633186A
Cited
US1677632A
Cited
FR678087A
Cited
GB424955A
Cited
US2094621A
Cited
US2111036A
Cited
US2215895A
Cited
US2259858A
Cited
US2198521A
Cited
US2248574A
Cited
US2355618A
Cited
US2362151A
Cited
US2389067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |