Patent US3723176A successfully refreshed from Google Patents.
US3723176A
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Alumina palladium composite
Assignee: American Lava Corp
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Filing: 1971-02-18
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Granted: 1973-03-27
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Expires: 1991-02-18
Abstract
Abstract INTERMEDIATE ALUMINA SUBSTRATES CONTAINING BURIED PALLADIUM CONDUCTOR PATTERNS AND ADAPTED FOR THICK OR THIN FILM HYBRID INTEGRATED CIRCUITS ARE PROVIDED WHICH CAN BE FIRED IN AIR I.E., UNDER NORMAL OXIDIZING CONDITIONS, AND YET IN WHICH THE CERAMIC OF THE SUBSTRATE MATURES WITHOUT ADVERSELY AFFECTING BURIED PALLAIDUM CIRCUITS.
Inventors
- 👤 P Theobald
- 👤 J Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:00
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/10; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K3/00; H05K3/40; H05K3/4038; H05K3/4053; H05K3/4061; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49126; Y10T29/49155; Y10T29/49163; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063; Y10T428/1209; Y10T428/12389; Y10T428/12396; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618; Y10T428/12771; Y10T428/12861; Y10T428/12875; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24802; Y10T428/24851; Y10T428/24917
Claims Analysis
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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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |