US2815491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive device
Assignee: General Electric Co
•
Filing: 1956-08-14
•
Granted: 1957-12-03
•
Expires: 1976-08-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Antalis
- 👤 Myrle O Marsh
- 👤 Elmer J Zelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:49
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/26; H01F27/266
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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |