US2476280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the distillation and fractionation of composite liquids and control means therefor
Assignee: Foster Wheeler Inc
•
Filing: 1944-05-10
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Granted: 1949-07-19
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Expires: 1964-05-10
Abstract
No abstract record available.
Inventors
- 👤 Leslie B Bragg
- 👤 Charles A Schwarzler
- 👤 Cuthbert J Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:24
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4255; G; G01; G01L; G01L7/00; G01L7/18; Y; Y10; Y10S; Y10S203/00; Y10S203/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1872879A
Cited
US2017820A
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FR728957A
Cited
US1856471A
Cited
US2069490A
Cited
US2249461A
Cited
US2250946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |