US2594436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Elsag Bailey Inc
•
Filing: 1948-10-08
•
Granted: 1952-04-29
•
Expires: 1968-10-08
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Hornfeck
- 👤 Howard T Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
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)
US2109222A
Cited
US2436807A
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US2310955A
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US2276506A
Cited
US2363473A
Cited
US2333393A
Cited
US2355537A
Cited
US2494876A
Cited
US2447338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |