US2869048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic device
Assignee: ULTRA ELECTRIC Inc
•
Filing: 1953-05-18
•
Granted: 1959-01-13
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Reed Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/13
Claims Analysis
Total Claims: 0
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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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |