US2911529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable controllable inductor apparatus
Assignee: C G S LABORATORIES Inc
•
Filing: 1957-01-31
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Granted: 1959-11-03
•
Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Ellery P Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:27
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/02; H01F21/08; H01F29/00; H01F29/14; H01F29/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1896510A
Cited
US2058302A
Cited
US2241912A
Cited
US2462423A
Cited
US2581202A
Cited
US2786940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |