US3427709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of circuit device
Assignee: Telefunken Patentverwertungs GmbH
•
Filing: 1965-10-24
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Granted: 1969-02-18
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Hans-Jurgen Schutze
- 👤 Klaus Hennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:19
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D62/13; H10D62/137; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D99/00; H10W; H10W15/00; H10W15/01; H10W20/00; H10W20/20; Y; Y10; Y10S; Y10S148/00; Y10S148/049; Y10S148/085; Y10S438/00; Y10S438/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2967344A
Cited
US3054034A
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US2981877A
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US3158788A
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US3199002A
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US3237062A
Cited
US3189973A
Cited
US3340601A
Cited
US3290753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |