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US2825014A
Expired / Lapsed
US
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Semi-conductor device
Assignee: US Philips Corp
•
Filing: 1954-10-19
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Granted: 1958-02-25
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Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 Willemse Theo Willem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:42
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10W90/00; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; Y; Y10; Y10S; Y10S165/00; Y10S165/905
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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |