US2679022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer from manual to automatic control in automatic control systems
Assignee: Leeds and Northrup Co
•
Filing: 1951-11-13
•
Granted: 1954-05-18
•
Expires: 1971-11-13
Abstract
No abstract record available.
Inventors
- 👤 Mcilhenny Archibald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:13
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; Y; Y10; Y10S; Y10S131/00; Y10S131/91
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) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |