Patent US6547821B1 successfully refreshed from Google Patents.
US2967984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device
Assignee: US Philips Corp
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Filing: 1958-11-03
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Granted: 1961-01-10
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Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Noel C Jamison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:22
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; 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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |