Patent US3521086A successfully refreshed from Google Patents.
US3521086A
Expired / Lapsed
US
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Circuit arrangement for limiting the output voltage of a logical circuit
Assignee: US Philips Corp
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Filing: 1967-06-05
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Granted: 1970-07-21
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Expires: 1987-06-05
Abstract
No abstract record available.
Inventors
- 👤 Arie Slob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:18
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/01; H03K19/013; H03K19/02; H03K19/08; H03K19/082; H03K19/086; H03K19/094; H03K19/0944; H03K19/09448; H03K3/00; H03K3/02; H03K3/027; H03K5/00; H03K5/01; H03K5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3023368A
Cited
US3217237A
Cited
US3148337A
Cited
US3226653A
Cited
US3360734A
Cited
US3368156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |