Patent US2883447A successfully refreshed from Google Patents.
US2883447A
Expired / Lapsed
US
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Universally adaptable conductivecircuit board
Assignee: Individual
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Filing: 1958-04-28
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Granted: 1959-04-21
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Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Frank L Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09609; H05K3/00; H05K3/40; H05K3/4038; H05K3/4046; H05K3/4084; 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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |