US2907885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic control circuit
Assignee: International Standard Electric Corp
•
Filing: 1955-04-04
•
Granted: 1959-10-06
•
Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Mayer Simon Ernst
- 👤 Waddell James Maclagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:20
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7368
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2164728A
Cited
US2314822A
Cited
US2274530A
Cited
US2504628A
Cited
US2519339A
Cited
US2567896A
Cited
US2570978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |