US3512050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power semiconductor device
Assignee: Motors Liquidation Co
•
Filing: 1967-11-29
•
Granted: 1970-05-12
•
Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Robert M Burton
- 👤 Donald E Lake
- 👤 Eugene H Sayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:56
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H10W72/00; H10W72/20; H10W40/20; H10W40/231; H10W40/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA677793A
Cited
US2994017A
Cited
US3013191A
Cited
US2960639A
Cited
US3265805A
Cited
US3389305A
Cited
US3361195A
Cited
US3400543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |