US3471812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High impedance printed conductor circuit suitable for high frequencies
Assignee: Telefunken Patentverwertungs GmbH
•
Filing: 1965-09-02
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Granted: 1969-10-07
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Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 Peter Lackner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:57
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/02; H01P3/08; H01P3/081; H01F; H01F17/00; H01F17/0006; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0237; H05K1/025; H05K1/16; H05K1/162; H05K1/165; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/09218; H05K2201/09236; H05K2201/09654; H05K2201/09672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2411555A
Cited
US2706697A
Cited
US2468151A
Cited
US2611822A
Cited
US2751589A
Cited
US2794174A
Cited
US2897460A
Cited
US2896177A
Cited
GB798143A
Cited
US2915716A
Cited
US2925568A
Cited
US2922123A
Cited
US2990547A
Cited
US2976501A
Cited
US3177453A
Cited
US3172112A
Cited
FR1395565A
Cited
US3289123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |