US2586503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid heater temperature control system
Assignee: Elsag Bailey Inc
•
Filing: 1948-01-29
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Granted: 1952-02-19
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Expires: 1968-01-29
Abstract
No abstract record available.
Inventors
- 👤 Clayton H Barnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:30
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1925; G05D23/1906; G05D23/1919; G05D23/20; G05D23/24; G05D23/275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1967988A
Cited
US2468535A
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US1962676A
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US2052375A
Cited
DE627448C
Cited
US2298257A
Cited
US2353692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |