US3436615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact metal system of an allayer adjacent to semi-conductor and a layer of au-al intermetallics adjacent to the conductive metal
Assignee: Fairchild Semiconductor Corp
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Filing: 1966-11-23
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Granted: 1969-04-01
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Expires: 1986-11-23
Abstract
No abstract record available.
Inventors
- 👤 Malcolm J Finlayson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:57
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10W20/00; H10W20/40; H10W72/00; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236
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) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |