Patent US2903610A successfully refreshed from Google Patents.
US2903610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamo-electric machine field magnet construction with split poles
Assignee: Safran Electrical and Power SAS
•
Filing: 1957-07-22
•
Granted: 1959-09-08
•
Expires: 1977-07-22
Abstract
No abstract record available.
Inventors
- 👤 Bessiere Pierre Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:30
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185; H02K1/14; H02K1/146; H02K1/148; H02K23/00; H02K23/40; H02K23/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |