US3470043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective plating of etched circuits without removing previous plating
Assignee: National Aeronautics and Space Administration
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Filing: 1965-09-08
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Granted: 1969-09-30
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Expires: 1985-09-08
Abstract
No abstract record available.
Inventors
- 👤 Charles Exum Whitfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:57
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/02; H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/064; H05K3/067; H05K3/22; H05K3/24; H05K3/243; H05K1/00; H05K1/02; H05K1/11; H05K1/117; H05K2203/00; H05K2203/05; H05K2203/0562; H05K2203/0577; H05K2203/07; H05K2203/0703; H05K2203/0723; H05K3/062; H05K3/10; H05K3/108; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3473; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |