US3538353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching circuit
Assignee: General Electric Co
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Filing: 1967-10-13
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Granted: 1970-11-03
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Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 William A Hanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:14
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/66; H03K17/665; H03K17/666; H03K17/667; H02; H02H; H02H7/00; H02H7/08; H02H7/0833; H02H7/0838; H02P; H02P7/00; H02P7/03; H02P7/04; H03K17/08; H03K17/081; H03K17/0812; H03K17/08126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |