Patent US3506844A successfully refreshed from Google Patents.
US3506844A
Expired / Lapsed
US
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Circuit device for contact-free integrated circuit control modules
Assignee: Siemens AG
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Filing: 1967-03-07
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Granted: 1970-04-14
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Expires: 1987-03-07
Abstract
No abstract record available.
Inventors
- 👤 Ebbe Rohloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:35
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/084; H03K17/00; H03K17/16; H03K17/51; H03K17/56; H03K17/60; H03K19/0175; H03K19/018; H03K19/01806; H10; H10D; H10D84/00; H10D99/00
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) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |