US3567509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-insulator films for semiconductor devices
Assignee: International Business Machines Corp
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Filing: 1968-02-19
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Granted: 1971-03-02
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Expires: 1988-02-19
Abstract
Abstract THIS IS A METAL-INSULATING COMPOUND FILM FOR SEMICONDUCTOR DEVICES WHEREIN THE METAL IS A METAL-SEMICONDUTOR ALLOY WITH THE SEMICONDUCTOR BEING A SMALL PERCENTAGE OF THE ALLOY.
Inventors
- 👤 Lubertus L Kuiper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:13
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10D; H10D64/00; H10D64/01; H10D64/011; H10D64/0111; H10P; H10P95/00; H10W20/00; H10W20/40; Y; Y10; Y10S; Y10S148/00; Y10S148/018; Y10S148/02; Y10S148/033; Y10S438/00; Y10S438/958; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12535; Y10T428/12597; Y10T428/12674; Y10T428/12736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |