US3070304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arithmetic unit for digital control systems
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1957-04-12
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Granted: 1962-12-25
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Lowell D Amdahl
- 👤 Robert C Douthitt
- 👤 Howard L Engel
- 👤 James D Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:49
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/76; G06F15/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR1106950A
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US2785388A
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US2947976A
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US2935259A
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US2939120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |