US2996695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controllable inductor
Assignee: C G S LABORATORIES Inc
•
Filing: 1955-12-06
•
Granted: 1961-08-15
•
Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 George S Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
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)
US457407A
Cited
US1601400A
Cited
US1585389A
Cited
GB209345A
Cited
US1587381A
Cited
US2374059A
Cited
US2471411A
Cited
US2818514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |