US2901554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device and apparatus
Assignee: General Electric Co
•
Filing: 1953-01-19
•
Granted: 1959-08-25
•
Expires: 1973-01-19
Abstract
No abstract record available.
Inventors
- 👤 Lesk Israel Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0017; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2524035A
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US2569347A
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US2600500A
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US2522521A
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US2553490A
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US2666814A
Cited
US2553491A
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US2756285A
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US2695930A
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US2657360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |