Patent US2861182A successfully refreshed from Google Patents.
US2861182A
Expired / Lapsed
US
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Logarithmic converter circuit
Assignee: Individual
•
Filing: 1953-06-16
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Granted: 1958-11-18
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Expires: 1973-06-16
Abstract
No abstract record available.
Inventors
- 👤 Green Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:04
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2104336A
Cited
US2509742A
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US2575073A
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US2581124A
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US2569321A
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US2668237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |