US3390256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Predictor self-check system for analog computer
Assignee: Marquardt Corp
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Filing: 1963-09-18
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Granted: 1968-06-25
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Henry M Clanton
- 👤 George B Crofts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:19
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/76; B; B61; B61L; B61L29/00; B61L29/24; B61L29/28; B61L29/286; G06G7/70; G06G7/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |