US2491606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Elsag Bailey Inc
•
Filing: 1946-01-30
•
Granted: 1949-12-20
•
Expires: 1966-01-30
Abstract
No abstract record available.
Inventors
- 👤 Paul S Dickey
- 👤 Anthony J Hornfeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:29
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2025542A
Cited
US2050629A
Cited
US2420415A
Cited
US2363690A
Cited
US2412263A
Cited
US2406221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |