US3379568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming holes and multilayer interconnections through a dielectric
Assignee: Boeing North American Inc
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Filing: 1964-12-21
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Granted: 1968-04-23
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0017; C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; H10; H10N; H10N97/00; H05K2203/00; H05K2203/05; H05K2203/0562; H05K2203/0582; H05K2203/08; H05K2203/083; H05K3/22; H05K3/28; H05K3/288; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/24802
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1093162B
Cited
US3237271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |