Patent US3985957A successfully refreshed from Google Patents.
Patent US3524126A successfully refreshed from Google Patents.
US3524126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer for transmitting pulses or power at stepped high-voltage potential
Assignee: BBC Brown Boveri AG Germany
•
Filing: 1968-04-01
•
Granted: 1970-08-11
•
Expires: 1988-04-01
Abstract
No abstract record available.
Inventors
- 👤 Hans Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/34; H01F27/341; H01F30/00; H01F30/06; H01F30/16; H01F38/00; H01F38/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE281177C
Cited
CA54849A
Cited
US1916588A
Cited
US2153090A
Cited
GB554901A
Cited
US2412345A
Cited
GB742554A
Cited
US3225258A
Cited
US3200320A
Cited
US3274526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |