US3483552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital-to-analog for control systems
Assignee: Associated Electrical Industries Ltd
•
Filing: 1966-02-18
•
Granted: 1969-12-09
•
Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Bryan Millar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:20
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1231; H03B5/1203; H03B5/1237; H03B5/124
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2640954A
Cited
US2641931A
Cited
US2571746A
Cited
US2972106A
Cited
US3039030A
Cited
US3219895A
Cited
US3315250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |