US2567959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed evaporator and method
Assignee: Standard Oil Development Co
•
Filing: 1944-01-28
•
Granted: 1951-09-18
•
Expires: 1964-01-28
Abstract
No abstract record available.
Inventors
- 👤 John C Munday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1661203A
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US1886580A
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US1983943A
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US2118078A
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US2358039A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |