Patent US3488516A successfully refreshed from Google Patents.
US3488516A
Expired / Lapsed
US
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Transient elimination network
Assignee: FABRI TEK Inc
•
Filing: 1965-12-17
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Granted: 1970-01-06
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Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Kruschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:48
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/62; H03K17/6221; G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2840726A
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US3054950A
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US3228002A
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US3158692A
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US3119025A
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US3146438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |