Patent US3576669A successfully refreshed from Google Patents.
US3576669A
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US
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Method for coating through-holes
Assignee: National Aeronautics and Space Administration
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Filing: 1968-08-15
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Granted: 1971-04-27
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Expires: 1988-08-15
Abstract
Abstract THROUGH-HOLES IN A CERAMIC SUBSTRATE ARE GIVEN A CONDUCTIVE COATING OF A LIQUID METAL MIXTURE BY IMMERSING A PLURALITY OF SPACED RODS IN A COATING MATERIAL; WITH DRAWING THE RODS WITH GLOBULES OF THE MIXTURE CLINGING TO THE RODS; PASSING THE RODS THROUGH LIKE SPACED HOLES IN A SUBSTRATE AND BACK INTO THE COATING MATERIAL SO TO DEPOSIT THE COATING MATERIAL ON ONE SIDE OF THE SUBSTRATE. THE RODS ARE THEN WITHDRAWN FROM THE COATING MATERIAL WITH CLINGING GLOBULES OF COATING MATERIALS AND THE OTHER OF THE SUBSTRATE IS COATED AS THE PINS PASS THROUGH THE THROUGH-HOLES IN THE SUBSTRATE.
Inventors
- 👤 George L Filip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/40; H05K3/4038; H05K3/4053; H05K2201/00; H05K2201/09; H05K2201/09818; H05K2201/09981; H05K2203/00; H05K2203/01; H05K2203/0195; H05K2203/03; H05K2203/0338; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |