Patent US3523226A successfully refreshed from Google Patents.
US3523226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal monitoring system for a closed loop servo system
Assignee: Bendix Corp
•
Filing: 1967-07-28
•
Granted: 1970-08-04
•
Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 William Walter Medlinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:38
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0077
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2487793A
Cited
US2823877A
Cited
US2869063A
Cited
US2973927A
Cited
US3135485A
Cited
US3252675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |