US3471757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor rectifier assembly
Assignee: General Electric Co
•
Filing: 1968-09-25
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Granted: 1969-10-07
•
Expires: 1988-09-25
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Sias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:33
CPC Classifications
H; H10; H10W; H10W90/00; H10W40/00; H10W40/40; H10W40/43; H10W40/60; H10W40/611
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1862936A
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US2153434A
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US2745044A
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US2803791A
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US2933663A
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US3238425A
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US3280389A
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US3192454A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |