US3369128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logarithmic function generator
Assignee: NEXUS RES LAB Inc
•
Filing: 1964-02-10
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Granted: 1968-02-13
•
Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Alan R Pearlman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:49
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3058057A
Cited
US3108197A
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US3128377A
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US3152250A
Cited
US3255417A
Cited
US3237028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |