Patent US3599151A successfully refreshed from Google Patents.
US3484865A
Expired / Lapsed
US
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Integrated semiconductor device including igfet with interdigitated structure
Assignee: US Philips Corp
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Filing: 1968-02-05
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Granted: 1969-12-16
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Expires: 1988-02-05
Abstract
No abstract record available.
Inventors
- 👤 Rijkent Jan Nienhuis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
H; H10; H10D; H10D30/00; H10D30/60; H10D30/64; H10D30/66; H10D62/00; H10D62/10; H10D62/124; H10D62/126; H10D62/127; H10D84/00; H10D84/40; H10D84/401; H10D84/403; H10D84/406; H10W; H10W20/00; H10W20/40; H10W20/482; H10W20/484; H10D64/00; H10D64/20; H10D64/23; H10D64/251; H10D64/252; H10D64/27; H10D64/311; H10D64/411; H10D64/511; H10D64/517; H10D64/519; Y; Y10; Y10S; Y10S148/00; Y10S148/02; Y10S148/037; Y10S148/049; Y10S148/05; Y10S148/051; Y10S148/053; Y10S148/085; Y10S148/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1349963A
Cited
GB1060725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |