US2755446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable inductance control method and apparatus
Assignee: C G S LABORATORIES Inc
•
Filing: 1951-06-30
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Granted: 1956-07-17
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Expires: 1971-06-30
Abstract
No abstract record available.
Inventors
- 👤 William D Gabor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:25
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/32; H03H7/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2053154A
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US2293502A
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US2569309A
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US2544790A
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US2575494A
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US2600342A
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US2645748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |