US3419772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Probabilistic and deterministic filter for control systems
Assignee: Leeds and Northrup Co
•
Filing: 1964-09-25
•
Granted: 1968-12-31
•
Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Charles W Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:01
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/04; H02J3/08; G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B5/00; G05B5/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3286144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |