US3411019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic converter and switching means therefor
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1965-03-25
•
Granted: 1968-11-12
•
Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Jorgensen Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:48
CPC Classifications
H; H03; H03M; H03M7/00; H03M7/14; H03M7/16; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/603; H03K17/62; H03K17/6257; H03K17/66; H03K17/665; H03K17/666; H03K17/667
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125694A
Cited
US2992409A
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US2956272A
Cited
US3112410A
Cited
US3069567A
Cited
US3177374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |