US2738451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid with hinged core
Assignee: Controls Corp of America
•
Filing: 1952-05-16
•
Granted: 1956-03-13
•
Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Robert W Bachi
- 👤 Hardin Y Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:54
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1436639A
Cited
US851663A
Cited
US1165904A
Cited
US1585216A
Cited
US2310056A
Cited
US2449901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |