US3485665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective chemical deposition of thin-film interconnections and contacts
Assignee: AT&T Inc
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Filing: 1967-08-22
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Granted: 1969-12-23
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Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Michael Anthony De Angelo
- 👤 Matthew Warren Sagal
- 👤 Donald Jex Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:24
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/243; C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1603; C23C18/1607; C23C18/1608; C25; C25D; C25D5/00; C25D5/02; H10; H10N; H10N97/00; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0175; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0338; H05K2203/00; H05K2203/03; H05K2203/0315; H05K2203/0361; H05K2203/05; H05K2203/0562; H05K2203/0582; H05K2203/07; H05K2203/0703; H05K2203/072
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |